CN215337635U

CN215337635U - Novel molecular sieve rotary roasting furnace

Info

Publication number: CN215337635U
Application number: CN202121215142.1U
Authority: CN
Inventors: 孙玉坤; 金雷; 梁劲
Original assignee: Dalian Haixin Chemical Industrial Co ltd
Current assignee: Dalian Haixin Chemical Industrial Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-28
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a novel molecular sieve rotary roasting furnace, which relates to a molecular sieve production device and comprises a bracket part and a rotary furnace, wherein the rotary furnace is downwards inclined at an angle of 10-20 degrees; the rotary furnace comprises a rotary furnace cylinder, a hollow rotary shaft, a hollow pipe, a discontinuous partition plate, a feeding end socket, a discharging end socket, an outer shell, a heating hearth, a gas spray head, a gas pipeline and control valve, an oxygen pipeline and control valve and a smoke exhaust pipeline; the application of the utility model ensures that the temperature in the cylinder is balanced and evenly distributed inside and outside, improves the roasting efficiency of the molecular sieve, strengthens the stirring of the molecular sieve to ensure that the roasting efficiency is higher, strengthens the support of the rotary furnace cylinder and prevents the rotary furnace cylinder from deforming due to the self gravity.

Description

Novel molecular sieve rotary roasting furnace

Technical Field

The utility model relates to a molecular sieve production device, in particular to a novel molecular sieve rotary roasting furnace which is used for roasting a molecular sieve to remove most of water in the production process of the molecular sieve so as to obtain a finished molecular sieve.

Background

Roasting in the production process of the molecular sieve is a key preparation process and is a production link which is crucial to the performance of the molecular sieve; in the production process, the roasting process is mainly realized by roasting the molecular sieve in a roasting furnace. An important device in the prior art for the mass and continuous roasting production of powdery and granular molecular sieves is a rotary roasting furnace. In the roasting process, the roasting furnace is heated to reach the roasting temperature, and the molecular sieve passes through the roasting furnace at the temperature for a certain time to finish the roasting of the molecular sieve. When the molecular sieve is calcined in the calcining furnace, the heat of calcination comes from the heated cylinder wall. The heating layer of the roasting furnace heats the cylinder wall, and then the heated cylinder wall heats the inner space of the cylinder and the molecular sieve in the cylinder in the form of heat radiation, so that the heat in the cylinder is transferred from the circular periphery of the cylinder to the center of the cylinder. Due to the structure of the cylinder and the heat transfer, the temperature distribution in the cylinder is uneven, and the temperature gradient gradually decreases from the inner wall of the cylinder to the axial position of the cylinder along the radius direction of the cylinder. In addition, due to the action of gravity, materials are mainly concentrated on the lower part of the cylinder body, the upper space and the central part of the cylinder body are obviously insufficiently utilized, and the utilization efficiency of roasting heat is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel molecular sieve rotary roasting furnace to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel molecular sieve rotary roasting furnace, includes support portion, the upper portion of support portion is provided with the rotary furnace who is 10-20 degrees angle downward sloping from a left side to the right side, the left end of rotary furnace passes through pipeline and preceding device intercommunication, the right-hand member of rotary furnace passes through pipe connection to heat sink, the top of rotary furnace section of thick bamboo is provided with a plurality of exhaust pipes, and is a plurality of from a left side to the even interval in right side exhaust pipe is connected to the chimney jointly.

And further. The rotary furnace comprises an inner cylindrical rotary furnace barrel, a feeding seal head is arranged at the left end of the rotary furnace barrel, a discharging seal head is arranged at the right end of the rotary furnace barrel, fixed gears are fixedly arranged on the outer walls of the rotary furnace barrel close to the seal heads at the two ends, two groups of sealing bearings are arranged at the positions of the rotary furnace barrel close to the fixed gears at the two ends and are connected with a shell body together, a hollow heating hearth is encircled between the shell body and the rotary furnace barrel, and the shell body is symmetrically provided with two rows of gas nozzles at the front and back sides.

Furthermore, a cylindrical hollow rotating shaft is arranged at the axis of the rotary furnace cylinder, and two ends of the hollow rotating shaft penetrate through the cylinder wall of the rotary furnace cylinder through eight hollow pipes which are annularly arranged and are communicated with the heating hearth.

Furthermore, a plurality of intermittent partition plates which are annularly arranged and are in the same plane with the axis are arranged between the rotary furnace cylinder and the hollow rotary shaft.

Furthermore, a fixed gear at one end of the rotary furnace cylinder is connected with a driving motor through a driving chain.

Preferably, the driving motor is a variable frequency motor.

Preferably, each row of gas nozzles are arranged in parallel with the axis of the rotary furnace barrel, and a connecting line which is opposite to the two gas nozzles in the front-back direction is positioned at a half of the radius below the axis of the rotary furnace barrel; each row of gas nozzles are uniformly arranged at intervals of about 0.5 meter from left to right.

Furthermore, each gas nozzle is independently connected with a gas pipeline outside the outer shell and controlled by a gas control valve, an oxygen pipeline and an oxygen control valve.

Furthermore, the outer side of the outer shell is also provided with a fireproof heat-insulating layer.

Compared with the prior art, the utility model has the beneficial effects that:

1. the application of the hollow rotary shaft in the utility model ensures that the temperature in the rotary furnace cylinder is balanced and uniformly distributed inside and outside, thereby improving the roasting efficiency of the molecular sieve;

2. the application of the discontinuous partition plate strengthens the stirring of the molecular sieve, accelerates the heating of the molecular sieve and accelerates the roasting efficiency of the molecular sieve;

3. the hollow rotary shaft and the intermittent partition plate are used for supporting the rotary furnace barrel, so that the rotary furnace barrel is prevented from being deformed due to self gravity.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of a gas burner and its connecting piping;

FIG. 4 is a schematic view of the structure of a rotary kiln;

FIG. 5 is a schematic cross-sectional view of a rotary kiln at a hollow tube;

FIG. 6 is a schematic cross-sectional view of a rotary kiln at the point of a break partition;

in the figure: the device comprises a support part-1, a rotary furnace-2, a rotary furnace cylinder-201, a hollow rotary shaft-2010, a hollow pipe-2011, an intermittent partition plate-2012, a feeding end socket-202, a discharging end socket-203, a fixed gear-204, a sealing bearing-205, an outer shell-206, a heating hearth-207, a gas spray head-208, a gas pipeline-2081, a gas control valve-2082, an oxygen pipeline-2083, an oxygen control valve-2084, a driving chain-209, a driving motor-210, a smoke exhaust pipeline-3 and a chimney-4.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings and the specific embodiments.

Referring to fig. 1-6, fig. 1 is a schematic view of the present invention; FIG. 2 is a schematic structural view of the present invention; FIG. 3 is a schematic view of a gas burner and its connecting piping; FIG. 4 is a schematic view of the structure of a rotary kiln; FIG. 5 is a schematic cross-sectional view of a rotary kiln at a hollow tube; FIG. 6 is a schematic sectional view of a rotary kiln at a point of a discontinuous partition.

The utility model provides a novel molecular sieve rotary roasting furnace which comprises a support part 1, wherein a rotary furnace 2 which is inclined downwards at an angle of 10-20 degrees from left to right is arranged at the upper part of the support part 1, and the left end of the rotary furnace 2 is communicated with a previous device through a pipeline and is used for feeding a molecular sieve subjected to primary treatment by the previous device into the rotary furnace 2 for rotary roasting treatment; the right end of the rotary furnace 2 is connected to a cooling device through a pipeline and is used for cooling the roasted and dehydrated molecular sieve; a plurality of smoke exhaust pipes 3 are uniformly arranged above the rotary furnace cylinder 2 from left to right at intervals and used for discharging the smoke in the rotary furnace 2 after combustion and heating into a chimney 4.

The rotary furnace 2 comprises a rotary furnace cylinder 201 with a cylindrical inner layer, a feeding end socket 202 is arranged at the left end of the rotary furnace cylinder 201, a discharging end socket 203 is arranged at the right end of the rotary furnace cylinder 201, and fixed gears 204 are fixedly arranged on the outer walls of the rotary furnace cylinder 201 close to end sockets at two ends and are used for being meshed with gears fixed on the support part 1 to provide support for the rotary furnace cylinder 201 and reduce resistance to rotation of the rotary furnace cylinder 201; two groups of sealing bearings 205 are arranged at the position, close to the fixed gear 204 at the two ends, of the rotary furnace cylinder 201 and are connected with an outer shell 206 together, and a hollow heating hearth 207 is defined between the outer shell 206 and the rotary furnace cylinder 201 and is used for burning and heating the rotary furnace cylinder 201; the outer shell 206 is symmetrically provided with two rows of gas nozzles 208 at the front side and the rear side, and is used for burning and heating the rotary furnace cylinder 201 in the heating hearth 207; the fixed gear 204 at one end of the rotary furnace cylinder 201 is further connected with a driving motor 210 through a driving chain 209 for driving the rotary furnace cylinder 201 to rotate.

The driving motor 210 is a variable frequency motor, and can be used for adjusting the rotation speed of the rotary furnace drum 201 according to the roasting effect of the molecular sieve, so as to achieve the best roasting effect.

Each row of gas nozzles 208 is arranged in parallel with the axis of the rotary furnace barrel 201, and a connecting line which is opposite to the two gas nozzles 208 in the front-back direction is positioned at a half of the radius below the axis of the rotary furnace barrel 208; each row of gas nozzles 208 is evenly spaced about 0.5 meter from left to right.

Each gas nozzle 208 is separately connected with a gas pipe 2081 outside the outer shell 206 and controlled by a gas control valve 2082, an oxygen pipe 2083 and an oxygen control valve 2084, so as to adjust the flame of the gas nozzle 208 to achieve the best combustion efficiency.

A cylindrical hollow rotating shaft 2010 is arranged at the axis of the rotary furnace cylinder 201, and two ends of the hollow rotating shaft 2010 penetrate through the cylinder wall of the rotary furnace cylinder 201 through eight hollow pipes 2011 which are arranged in a ring shape and are communicated with the heating hearth 207, so that high-temperature flue gas after combustion in the heating hearth 207 enters the hollow rotating shaft 2010 and heats the rotary furnace cylinder 201 from the inside; a plurality of intermittent partition plates 2012 which are annularly arranged and are in the same plane with the axis are arranged between the rotary furnace cylinder 201 and the hollow rotary shaft 2010 and are used for stirring the molecular sieve and heating the molecular sieve through good heat conductivity of the molecular sieve so as to accelerate the roasting efficiency of the molecular sieve; meanwhile, the rotary furnace barrel 201 is supported, and deformation caused by self gravity is prevented.

In addition, in order to prevent the rotary kiln 2 from causing scalding to workers in the using process, the outer side of the outer shell 206 is provided with the fireproof heat-insulating layer 5, and meanwhile, the heat-insulating effect can be achieved, the temperature in the heating hearth 207 is prevented from being dissipated to the surrounding environment, and therefore the roasting effect on the molecular sieve is guaranteed.

While embodiments of the utility model have been illustrated and described, it is to be understood that the embodiments described are merely some, and not all, embodiments of the utility model. Based on the embodiments of the present invention, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principle and spirit of the present invention, and all other embodiments obtained by making various changes, modifications, substitutions and alterations to the embodiments are within the scope of the present invention.

Claims

1. The utility model provides a novel molecular sieve rotary roasting furnace, includes support portion (1), its characterized in that: the upper portion of the support portion (1) is provided with a rotary furnace (2) which is inclined downwards at an angle of 10-20 degrees from left to right, the left end of the rotary furnace (2) is communicated with a previous device through a pipeline, the right end of the rotary furnace (2) is connected to a cooling device through a pipeline, a plurality of smoke exhaust pipelines (3) are uniformly arranged above the rotary furnace (2) from left to right at intervals, and the smoke exhaust pipelines (3) are jointly connected to a chimney (4).

2. The novel molecular sieve rotary roasting furnace of claim 1, characterized in that: the rotary furnace (2) comprises a rotary furnace cylinder (201) with an inner cylindrical layer, a feeding seal head (202) is arranged at the left end of the rotary furnace cylinder (201), a discharging seal head (203) is arranged at the right end of the rotary furnace cylinder, fixed gears (204) are fixedly arranged on the outer wall of the rotary furnace cylinder (201) close to the seal heads at two ends, two groups of sealing bearings (205) are arranged at the position of the rotary furnace cylinder (201) close to the fixed gears (204) at the two ends and are connected with an outer shell (206) together, a hollow heating hearth (207) is encircled between the outer shell (206) and the rotary furnace cylinder (201), and two rows of gas nozzles (208) are symmetrically arranged at the front side and the back side of the outer shell (206).

3. The novel molecular sieve rotary roasting furnace of claim 2, characterized in that: a cylindrical hollow rotating shaft (2010) is arranged at the axis of the rotary furnace cylinder (201), and two ends of the hollow rotating shaft (2010) penetrate through the cylinder wall of the rotary furnace cylinder (201) through eight hollow pipes (2011) which are annularly arranged and are communicated with the heating hearth (207).

4. The new molecular sieve rotary roasting furnace of claim 3, characterized in that: a plurality of intermittent partition plates (2012) which are annularly arranged and are in the same plane with the axis are arranged between the rotary furnace cylinder (201) and the hollow rotary shaft (2010).

5. The new molecular sieve rotary roasting furnace of claim 4, characterized in that: the fixed gear (204) at one end of the rotary furnace cylinder (201) is connected with a driving motor (210) through a driving chain (209).

6. The novel molecular sieve rotary roasting furnace of claim 5, characterized in that: the driving motor (210) is a variable frequency motor.

7. The new molecular sieve rotary roasting furnace of claim 6, characterized in that: each row of gas nozzles (208) are arranged in parallel with the axis of the rotary furnace barrel (201), and a connecting line which is right opposite to the two gas nozzles (208) in the front-back direction is positioned at a half of the radius below the axis of the rotary furnace barrel (201); each row of gas nozzles (208) are uniformly arranged from left to right at intervals of about 0.5 meter.

8. The new molecular sieve rotary roaster of claim 7, wherein: each gas nozzle (208) is connected with a gas pipeline (2081) outside the outer shell (206) and controlled by a gas control valve (2082), an oxygen pipeline (2083) and an oxygen control valve (2084).

9. The novel molecular sieve rotary roasting furnace of claim 8, characterized in that: and a fireproof heat-insulating layer (5) is also arranged on the outer side of the outer shell (206).