Swing type coke pusher for semi-coke furnace and working method of swing type coke pusher

Abstract

The invention relates to the technical field of low-rank coal pyrolysis, in particular to a swing type coke pusher for a semi-coke furnace and a working method of the swing type coke pusher. The swing type coke pushing machine comprises a linear driving device, a coke pushing frame and a material distributing and stirring device; a plurality of groups of distributing and shifting devices are arranged in one-to-one correspondence with discharge ports of the semi-coke furnace, and each group of distributing and shifting device consists of a guide body and a swinging shifting device; and the linear driving device drives the coke pushing frame to reciprocate so as to drive the swinging kick-out device to swing. Linear reciprocating coke pushing of a conventional coke pushing machine is changed into swing type coke pushing, the upper stock column of the coke pushing machine is small in pressure, the semi-coke stock column can be prevented from being cut during coke pushing, and semi-coke blocks cannot be damaged; compared with a mode adopting a conventional coke pusher, the semi-coke furnace is not limited by the width and length directions of the coke pusher any more, so that favorable conditions are provided for large-scale development of the carbonization furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of low-rank coal pyrolysis, and in particular to a swing-type coke pusher for a blue charcoal furnace and a working method thereof. Background Art

[0002] Semi-coke is a solid fuel made by low-temperature dry distillation of coal (500-700℃). It has the characteristics of high calorific value, low sulfur and low ash, easy to ignite, stable combustion, high efficiency, low environmental pollution and easy operation. The semi-coke furnace is a heating device that uses semi-coke as fuel.

[0003] The Chinese patent application with application publication number CN 119020051 A discloses a "vertical internal heating type blue charcoal furnace and coal block pyrolysis purification system". The vertical internal heating type blue charcoal furnace includes a furnace top coal box, an auxiliary coal box, a furnace wall and a carbonization chamber. The furnace wall encloses a cavity. The lower part of the cavity is provided with a plurality of spaced walls. The upper part of the cavity is connected with the auxiliary coal box. The carbonization chamber is composed of gaps between adjacent walls. The upper end of the wall is embedded with a gas mixing chamber. The gas mixing chamber is used to inject mixed gas into the carbonization chamber. The gas mixing chamber is connected with a burner for conveying mixed gas. The lower end of the furnace wall is provided with a large quenching trough for receiving and extinguishing blue charcoal from the carbonization chamber. The lower end of the carbonization chamber is provided with a hydraulic coke pusher for pushing blue charcoal into the large quenching trough. It also includes a coke supporting plate, which is a flat plate structure. The upper end of the coke supporting plate is connected to the carbonization chamber. The lower end of the carbonization chamber passes through the coke supporting plate. The blue charcoal at the lower part of the carbonization chamber falls into the coke supporting plate. The fixed end of the hydraulic coke pusher is set on the outside of the furnace wall, and the telescopic end of the hydraulic coke pusher extends into the coke supporting plate. The hydraulic coke pusher is an electro-hydraulic telescopic mechanism, and a push plate is set at the telescopic end. The semi-coke is slowly pushed into the coke quenching tank by telescopically moving the push plate.

[0004] At present, the coke pusher for the semi-coke furnace generally adopts a coke pusher plate made of square steel. A coke pusher plate is set at each discharge port. The coke pusher plate pushes the semi-coke from the discharge port to the large coke quenching tank below through reciprocating linear motion. This coke pusher has a simple structure and low manufacturing cost. However, during the coke pushing process, due to the extrusion of the material above, the coke pusher plate will cut the semi-coke column during the reciprocating motion, causing the semi-coke block to break, affecting the economic benefits of the product. In addition, due to the large resistance of the material column to the operation of the coke pusher, the maximum width of the coke pusher is generally not more than 4m, and the length is also limited, which seriously restricts the development of semi-coke furnaces in the direction of large-scale. Summary of the invention

[0005] The present invention provides a swinging coke pusher for a blue charcoal furnace and a working method thereof, which replaces the linear reciprocating coke pushing of a conventional coke pusher with a swinging coke pusher. The pressure of the material column above the coke pusher is small, and the cutting of the blue charcoal material column during coke pushing can be avoided, without damaging the blue charcoal blocks. Compared with the method of using a conventional coke pusher, the blue charcoal furnace is no longer restricted by the width and length directions of the coke pusher, thereby providing favorable conditions for the carbonization furnace to develop in a large-scale direction.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A swinging coke pusher for a semi-coke furnace comprises a linear drive device, a coke pushing frame and a material dividing and diverting device; a plurality of the material dividing and diverting devices are arranged in a one-to-one correspondence with the discharge port of the semi-coke furnace, and each group of the material dividing and diverting devices consists of a material guide body and a swinging material diverter; the material guide body and the swinging material diverter are arranged one above the other in the middle of the discharge section of the semi-coke furnace, and are both coaxially arranged with the discharge section; the two ends of the material guide body are respectively connected to the corresponding side walls of the discharge section, and the two ends of the top of the swinging material diverter are respectively rotatably connected to the corresponding side walls of the discharge section; the coke pushing frame is arranged along the longitudinal direction of the semi-coke furnace, one end of the coke pushing frame is connected to the linear drive device, and the coke pushing frame is in transmission connection with each swinging material diverter; the linear drive device drives the coke pushing frame to move back and forth, thereby driving the swinging material diverter to swing.

[0008] The material guide body is an inverted V-shaped material guide body, and the swing material selector is an inverted V-shaped swing material selector; the coke pushing frame is arranged on the top of the coke supporting plate along the longitudinal direction of the blue coke furnace, and the coke pushing frame is provided with a rack portion 1 corresponding to each inverted V-shaped swing material selector; a fan-shaped plate is arranged on the inner side of the inverted V-shaped swing material selector, and a rack portion 2 is arranged on the fan-shaped plate corresponding to the coke pushing frame; when the linear driving device drives the coke pushing frame to move back and forth, the inverted V-shaped swing material selector is driven to swing through the meshing transmission of the rack portion 1 and the rack portion 2.

[0009] The material guide body is a triangular pyramid material guide body, and the swinging material selector is a bell-shaped swinging material selector with a hyperbolic structure on the side; the coke pushing frame is arranged at the bottom of the coke supporting plate along the longitudinal direction of the semi-coke furnace, and the coke pushing frame has vertical connecting rods at the positions corresponding to each bell-shaped swinging material selector, and the vertical connecting rods pass upward through the long holes provided on the coke supporting plate, and a rack portion 1 is provided on the top of the vertical connecting rod; a fan-shaped plate is provided on the inner side of the bell-shaped swinging material selector, and a rack portion 2 is provided on the fan-shaped plate corresponding to the vertical connecting rod; when the linear driving device drives the coke pushing frame to move back and forth, the vertical connecting rod moves along the long holes on the coke supporting plate, and drives the bell-shaped swinging material selector to swing through the meshing transmission of the rack portion 1 and the rack portion 2.

[0010] The material guiding body is a hollow structure. One end of the material guiding body is provided with a first circulating water inlet, and the other end is provided with a first circulating water outlet. The first circulating water inlet and the first circulating water outlet are connected to a circulating cooling water tank through a first circulating water pipe. A first thermometer is arranged at a position close to the first circulating water outlet on the first circulating water pipe, and a first flow control valve is arranged at a position close to the first circulating water inlet. The first thermometer and the first flow control valve are interlocked and controlled through a control system.

[0011] The coke pushing frame is a hollow structure. One end of the coke pushing frame is provided with a second circulating water inlet, and the other end is provided with a second circulating water outlet. The second circulating water inlet and the second circulating water outlet are connected to the circulating cooling water tank through a second circulating water pipe. A second thermometer is arranged at a position close to the second circulating water outlet on the second circulating water pipe, and a second flow control valve is arranged at a position close to the second circulating water inlet. The second thermometer and the second flow control valve are interlocked and controlled through a control system.

[0012] At least two groups of the coke pushing frames are provided, and the coke pushing frames of each group are arranged in parallel and are connected at both ends through a connecting frame.

[0013] A working method of a swing type coke pusher for a semi-coke furnace. Low-rank pulverized coal enters the semi-coke furnace for carbonization to obtain semi-coke. When the semi-coke discharges from the discharge port of the semi-coke furnace, under the guiding action of the material guiding body, the semi-coke at each discharge port is divided into two part streams, and the two part streams respectively move downward along the blanking channels on the corresponding sides of the swing type blanking device; the linear driving device is started, the coke pushing frame reciprocates along the longitudinal direction of the semi-coke furnace, driving each swing type blanking device to swing around the top center of each, and pushing the semi-coke respectively falling onto the coke supporting plates from both sides into the lower quenching tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1) Changing the linear reciprocating coke pushing of a conventional coke pusher to swing type coke pushing. The material guiding body disperses the semi-coke to both sides of the swing type blanking device, the pressure of the material column above the coke pusher is small, and the cutting of the semi-coke material column during coke pushing can be avoided, and the semi-coke blocks will not be damaged.

[0016] 2) The swinging action of the swing type blanking device is driven by the horizontally reciprocating coke pushing frame. The resistance during pushing is small. A set of swing type blanking devices is respectively arranged at each discharge port of the semi-coke furnace, and the working resistance of each set of swing type blanking devices is small. Compared with the method of using a conventional coke pusher, the semi-coke furnace is no longer restricted by the width and length directions of the coke pusher, thus providing favorable conditions for the development of the carbonization furnace towards the large-scale direction. Description of the Drawings

[0017] Figure 1 is the front view of the swing type coke pusher for the semi-coke furnace described in the present invention Figure 1 .

[0018] Figure 2 is the front view of the swing type coke pusher for the semi-coke furnace described in the present inventionFigure 2 .

[0019] Figure 3 It is a top view of the swing type coke pusher for the semi-coke oven described in the present invention.

[0020] Figure 4 It is a schematic diagram of the working state of the swing type coke pusher for the semi-coke oven described in the present invention Figure 1 .

[0021] Figure 5 It is a schematic diagram of the working state of the swing type coke pusher for the semi-coke oven described in the present invention Figure 2 .

[0022] In the figure: 1. Linear drive device; 2. Coke pusher frame; 3. First rack part; 4. Feeding guide; 5. Swing type feeding pusher; 6. Sector plate; 7. Second rack part; 8. (Semi-coke oven) discharge port; 9. Coke supporting plate; 10. Vertical connecting rod Specific embodiments

[0023] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings:

[0024] As shown in Figure 1 , Figure 2 , a swing type coke pusher for a semi-coke oven described in the present invention includes a linear drive device 1, a coke pusher frame 2 and a material distributing and feeding device; a plurality of groups of the material distributing and feeding devices are arranged in one-to-one correspondence with the discharge port 8 of the semi-coke oven, and each group of the material distributing and feeding devices is composed of a feeding guide 4 and a swing type feeding pusher 5; the feeding guide 4 and the swing type feeding pusher 5 are arranged one above the other in the middle of the discharge section of the semi-coke oven, and are both coaxially arranged with the discharge section; both ends of the feeding guide 4 are respectively connected to the corresponding side walls of the discharge section, and both ends of the top of the swing type feeding pusher 5 are respectively rotatably connected to the corresponding side walls of the discharge section; the coke pusher frame 2 is longitudinally arranged on the top of the coke supporting plate 9 along the semi-coke oven, one end of the coke pusher frame 2 is connected to the linear drive device 1, and the coke pusher frame 2 is in transmission connection with each swing type feeding pusher 5; the linear drive device 1 drives the coke pusher frame 2 to reciprocate, and further drives the swing type feeding pusher 5 to swing.

[0025] As shown in Figure 1 , as a technical solution, the feeding guide 4 is an inverted V-shaped feeding guide, and the swing type feeding pusher 5 is an inverted V-shaped swing type feeding pusher; the coke pusher frame 2 is longitudinally arranged on the top of the coke supporting plate 9 along the semi-coke oven, and a first rack part 3 is respectively arranged on the coke pusher frame 2 corresponding to each inverted V-shaped swing type feeding pusher; a sector plate 6 is arranged inside the inverted V-shaped swing type feeding pusher, and a second rack part 7 is arranged on the sector plate 6 corresponding to the coke pusher frame 2; when the linear drive device 1 drives the coke pusher frame 2 to reciprocate, the inverted V-shaped swing type feeding pusher is driven to swing through the meshing transmission between the first rack part 3 and the second rack part 7.

[0026] As shown in Figure 2As shown in the figure, as another technical solution, the material guide 4 is a triangular pyramid material guide (the cross-section is triangular), and the swing feeding device 5 is a bell-shaped swing feeding device with a hyperbolic structure on the side; the coke pushing frame 2 is arranged at the bottom of the coking plate 9 along the longitudinal direction of the semi-coke furnace, and vertical connecting rods 10 are respectively arranged at the positions of the coke pushing frame 2 corresponding to each bell-shaped swing feeding device. The vertical connecting rods 10 pass upward through the long holes opened on the coking plate 9, and a first rack part 3 is arranged at the top of the vertical connecting rods 10; a sector plate 6 is arranged inside the bell-shaped swing feeding device, and a second rack part 7 is arranged on the sector plate 6 corresponding to the vertical connecting rod 10; when the linear driving device 1 drives the coke pushing frame 2 to reciprocate, the vertical connecting rods 10 move along the long holes on the coking plate 9, and drive the bell-shaped swing feeding device to swing through the meshing transmission between the first rack part 3 and the second rack part 7.

[0027] As Figure 3 shown in the figure, the material guide 4 is a hollow structure. A first circulating water inlet is arranged at one end of the material guide 4, and a first circulating water outlet is arranged at the other end. The first circulating water inlet and the first circulating water outlet are connected to the circulating cooling water tank through a first circulating water pipe. A first thermometer is arranged at a position close to the first circulating water outlet on the first circulating water pipe, and a first flow control valve is arranged at a position close to the first circulating water inlet. The first thermometer and the first flow control valve are interlocked and controlled through a control system.

[0028] As Figure 3 shown in the figure, the coke pushing frame 2 is a hollow structure. A second circulating water inlet is arranged at one end of the coke pushing frame 2, and a second circulating water outlet is arranged at the other end. The second circulating water inlet and the second circulating water outlet are connected to the circulating cooling water tank through a second circulating water pipe. A second thermometer is arranged at a position close to the second circulating water outlet on the second circulating water pipe, and a second flow control valve is arranged at a position close to the second circulating water inlet. The second thermometer and the second flow control valve are interlocked and controlled through a control system.

[0029] At least two groups of the coke pushing frames 2 are arranged, and the coke pushing frames 2 in each group are arranged in parallel and are connected at both ends through a connecting frame.

[0030] In the working method of the swing type coke pusher for the semi-coke furnace of the present invention, low-rank pulverized coal enters the semi-coke furnace for dry distillation to obtain semi-coke. When the semi-coke is discharged from the discharge port 8 of the semi-coke furnace, under the guiding action of the material guide 4, the semi-coke at each discharge port 8 is divided into two material flows, and the two material flows respectively move downward along the feeding channels on the corresponding sides of the swing feeding device 5; the linear driving device 1 is started, and the coke pushing frame 2 reciprocates along the longitudinal direction of the semi-coke furnace, driving each swing feeding device 5 to swing around the central axis of its own top, and pushing the semi-coke respectively falling onto the coking plate 9 from both sides into the lower coke quenching tank (as Figure 4 , Figure 5 shown in the figure).

[0031] To more intuitively illustrate the present invention, the embodiments of the present invention will be further described in conjunction with the examples. The following examples are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solutions that can be obviously obtained by those skilled in the art within the technical scope disclosed by the present invention, including simple changes or equivalent replacements, are within the protection scope of the present invention.

[0032]

Embodiment

[0033] In this embodiment, as Figure 1 、 Figure 2 shown, the swing coke pusher for the semi-coke oven includes a linear drive device 1, a coke pushing frame 2, an inverted V-shaped material guiding body, an inverted V-shaped swing material distributor, etc.; the inverted V-shaped material guiding body is installed in the middle of the discharging section of the semi-coke oven (the lowest section of the furnace body corresponding to the discharging port 8), directly above the inverted V-shaped swing material distributor. When the semi-coke moves down, it naturally diverges to both sides at the inverted V-shaped material guiding body. The inverted V-shaped swing material distributor is installed below the inverted V-shaped material guiding body, and both the inverted V-shaped material guiding body and the inverted V-shaped swing material distributor are composed of long strip plates on both sides.

[0034] In this embodiment, the inverted V-shaped material guiding body is a hollow structure, and a circulating water inlet one and a circulating water inlet one are respectively provided at both ends for introducing circulating cooling water into the inverted V-shaped material guiding body to prevent the inverted V-shaped material guiding body from being deformed and damaged due to high temperature and extend its service life. By means of a thermometer one provided at the circulating water outlet one and a flow control valve one provided at the circulating water inlet one, the flow rate of the circulating cooling water entering the inverted V-shaped material guiding body is controlled, and thus the cooling temperature of the V-shaped material guiding body is controlled.

[0035] In this embodiment, 2 groups of inverted V-shaped swing material distributors are provided at each discharging port 8 of the semi-coke oven. The 2 groups of inverted V-shaped swing material distributors are arranged in parallel and are connected at both ends through a connecting frame to form a firm frame structure; a plurality of sector plates 6 are provided inside the inverted V-shaped swing material distributor to enhance the structural strength of the inverted V-shaped swing material distributor. Among them, a rack part two 7 is provided in the middle of 2 sector plates 6, which is in meshing transmission with a rack part one 3 provided on the coke pushing frame 2 to drive the inverted V-shaped swing material distributor to swing around the top center.

[0036] In this embodiment, the linear drive device 1 adopts an electro-hydraulic push rod. The electro-hydraulic push rod drives the coke pushing frame 2 to perform horizontal reciprocating linear motion, and then drives the inverted V-shaped swing material distributor to swing; the coke pushing frame 2 is welded by square steel.

[0037] In this embodiment, the two strip-shaped feeding plates forming the inverted V-shaped swing feeder both have a cavity structure. At both ends of each group of inverted V-shaped swing feeders, there are respectively a circulating water inlet II and a circulating water outlet II, which are used to introduce circulating cooling water into the inverted V-shaped swing feeder to prevent the inverted V-shaped hot swing feeder from being deformed and damaged due to high temperature, and to extend its service life. By means of a thermometer II provided at the circulating water outlet II and a flow control valve II provided at the circulating water inlet II, the flow rate of the circulating cooling water entering the inverted V-shaped swing feeder is controlled, and thus the cooling temperature of the V-shaped swing feeder is controlled.

[0038] In this embodiment, the width and length of the swing coke pusher are matched with the width and length of the semi-coke oven, and the number of inverted V-shaped material guiding bodies and inverted V-shaped swing feeders is matched with the number of the discharge ports 8 of the semi-coke oven. During production, the coke pushing frame 2 drives all the inverted V-shaped swing feeders to move synchronously.

[0039] As Figure 4 , Figure 5 shown, when the swing coke pusher is working, low-rank pulverized coal enters the semi-coke oven for carbonization to obtain semi-coke. When the semi-coke is discharged from the discharge port 8 of the semi-coke oven, under the guiding action of the inverted V-shaped material guiding body, the semi-coke at each discharge port 8 is divided into two part streams, and the two part streams respectively move down along the material discharging channels on the corresponding sides of the inverted V-shaped swing feeder; the linear driving device 1 is started, and the coke pushing frame 2 reciprocates longitudinally along the semi-coke oven, driving each inverted V-shaped swing feeder to swing around its top center, and pushing the semi-coke respectively falling onto the coke supporting plates 9 from both sides into the quenching tank below.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A rocking coke pusher for a semi-coke oven, characterized in that, It includes a linear drive device, a coke pushing frame and a material distributing and deflecting device; multiple groups of the material distributing and deflecting devices are arranged in one-to-one correspondence with the discharge ports of the semi-coke furnace, and each group of the material distributing and deflecting devices is composed of a material guiding body and a swinging deflector; the material guiding body and the swinging deflector are arranged one above the other in the middle of the discharge section of the semi-coke furnace, and both are coaxially arranged with the discharge section; both ends of the material guiding body are respectively connected to the corresponding side walls of the discharge section, and both ends of the top of the swinging deflector are respectively rotatably connected to the corresponding side walls of the discharge section; the coke pushing frame is arranged longitudinally along the semi-coke furnace, one end of the coke pushing frame is connected to the linear drive device, and the coke pushing frame is in transmission connection with each swinging deflector; the linear drive device drives the coke pushing frame to reciprocate, and further drives the swinging deflector to swing.

2. The swing type coke pusher for a semi-coke oven according to claim 1, wherein The material guiding body is an inverted V-shaped material guiding body, and the swinging deflector is an inverted V-shaped swinging deflector; the coke pushing frame is arranged longitudinally along the semi-coke furnace on the top of the coke supporting plate, and a first rack portion is respectively arranged on the coke pushing frame at the positions corresponding to each inverted V-shaped swinging deflector; a sector plate is arranged on the inner side of the inverted V-shaped swinging deflector, and a second rack portion is arranged on the sector plate corresponding to the coke pushing frame; when the linear drive device drives the coke pushing frame to reciprocate, the inverted V-shaped swinging deflector is driven to swing through the meshing transmission between the first rack portion and the second rack portion.

3. A swing type coke pusher for a semi-coke oven according to claim 1, characterized in that, The material guiding body is a triangular pyramid material guiding body, and the swinging deflector is a bell-shaped swinging deflector with a hyperbolic structure on the side; the coke pushing frame is arranged longitudinally along the semi-coke furnace at the bottom of the coke supporting plate, and a vertical connecting rod is respectively arranged on the coke pushing frame at the positions corresponding to each bell-shaped swinging deflector. The vertical connecting rod passes upward through a long strip hole opened on the coke supporting plate, and a first rack portion is arranged at the top of the vertical connecting rod; a sector plate is arranged on the inner side of the bell-shaped swinging deflector, and a second rack portion is arranged on the sector plate corresponding to the vertical connecting rod; when the linear drive device drives the coke pushing frame to reciprocate, the vertical connecting rod moves along the long strip hole on the coke supporting plate, and the bell-shaped swinging deflector is driven to swing through the meshing transmission between the first rack portion and the second rack portion.

4. A swing coke pusher for a semi-coke oven according to claim 1, characterized in that, The material guiding body is of a hollow structure, a first circulating water inlet is arranged at one end of the material guiding body, and a first circulating water outlet is arranged at the other end. The first circulating water inlet and the first circulating water outlet are connected to a circulating cooling water tank through a first circulating water pipe. A first thermometer is arranged at a position close to the first circulating water outlet on the first circulating water pipe, and a first flow control valve is arranged at a position close to the first circulating water inlet. The first thermometer and the first flow control valve are interlocked and controlled through a control system.

5. A rocking coke pusher for a semi-coke oven according to claim 1, characterized in that, The coke pushing frame is of a hollow structure, a second circulating water inlet is arranged at one end of the coke pushing frame, and a second circulating water outlet is arranged at the other end. The second circulating water inlet and the second circulating water outlet are connected to the circulating cooling water tank through a second circulating water pipe. A second thermometer is arranged at a position close to the second circulating water outlet on the second circulating water pipe, and a second flow control valve is arranged at a position close to the second circulating water inlet. The second thermometer and the second flow control valve are interlocked and controlled through a control system.

6. The swing coke pusher for a semi-coke oven according to claim 1, characterized in that At least two groups of the coke pushing frames are arranged, and the groups of coke pushing frames are arranged in parallel and are connected at both ends through a connecting frame.

7. A working method of the swing coke pusher for the semi-coke oven as described in any one of claims 1 to 6, characterized in that, Low-rank pulverized coal enters the semi-coke oven for carbonization to obtain semi-coke. When the semi-coke discharges from the discharge port of the semi-coke oven, under the guiding action of the material guiding body, the semi-coke at each discharge port is divided into two material flows, and the two material flows respectively move downward along the feeding channels on the corresponding sides of the swinging feeding device; start the linear driving device, the coke pusher moves back and forth longitudinally along the semi-coke oven, driving each swinging feeding device to swing around its respective top center, and pushing the semi-coke that falls onto the coke supporting plate from both sides into the quenching trough below.

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