CN217781063U

CN217781063U - Tamping coke oven side coal-charging smoke prevention and dust control device

Info

Publication number: CN217781063U
Application number: CN202222009494.2U
Authority: CN
Inventors: 崔同良; 孔德胜
Original assignee: Yunnan Luxi Dawei Coking Co ltd
Current assignee: Yunnan Luxi Dawei Coking Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-11
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a tamping coke oven side coal-charging smoke prevention and dust control device, including the coke oven, the tedge, the smoke guide car, belt seal butt joint dolly, dust collecting main pipe and ground dust removal station, spark catcher has set gradually between tedge and belt seal butt joint dolly, rapid cooling dust remover and downcomer, rapid cooling dust remover includes the dust removal case, rapid cooling case and exhaust box, the upper portion of rapid cooling case is provided with the coolant liquid inlet, the lower part is provided with the coolant liquid outlet, the inside of rapid cooling case is provided with the center tube that extends to the dust removal incasement, air duct and spark catcher intercommunication are passed through to the upper end of center tube, the upper portion of dust removal case is provided with the absorption liquid import, the lower part is provided with a plurality of absorption liquid exports, the inside of dust removal case is provided with the water bath distributor with the center tube intercommunication, the inside from the bottom up of exhaust box has set gradually 2 at least layers of gas-liquid separation layer and 1 layer of gas-liquid separation layer. The device has the advantages of easy implementation, safe use, good smoke and dust water bath purification treatment effect and stronger practicability.

Description

Tamping coke oven side coal-charging smoke prevention and dust control device

Technical Field

The utility model relates to the technical field of coking equipment, in particular to a tamping coke oven side-coal-charging smoke prevention and dust control device.

Background

The tamping coke oven is one of mechanical chamber type coking processes, can increase the proportion of weak caking coal and efficiently utilize coking coal resources compared with a top-loading coke oven, is a preferred process technology suitable for the resource status of the coking coal in China, and is widely applied to China at present. However, compared with a top-charging coke oven, the smoke generated in the coal charging process of the tamping coke oven has the characteristics of large smoke amount, high water content, large viscosity and the like, and the smoke trapping difficulty is large due to the fact that a side-charging process is adopted in the coal charging process and the contact surface of a carbonization chamber and the atmosphere is large in the coal charging process, so that the smoke is seriously escaped in the coal charging process of the tamping coke oven, and the atmospheric environment is seriously polluted. For the collection and treatment of the smoke generated in the coal charging process of the tamping coke oven, a great deal of effort is put into the majority of environment protection workers and related technical personnel, and various treatment processes and technologies are also applied, such as a wet dust removal purification process after the collection and combustion of the smoke at the top of the oven, a purification process combined with a dry ground dust removal station after the collection and combustion of the smoke at the top of the oven, a treatment process combined with a furnace end smoke collection ground station and the like by leading the smoke into a gas collection system by using a smoke guide device of a U-shaped tube at the top of the oven, at present, the treatment process combined with the furnace end smoke collection ground station is used by a company by leading the smoke into the gas collection system by using the smoke guide device of the U-shaped tube at the top of the oven, the process device is used for extracting the smoke generated in the coal charging process from an ascending tube and a side dust removal hole of a carbonization chamber at a side of the adjacent carbonization chamber for full combustion and extracting the smoke from a middle dust removal hole of the carbonization chamber into a water bath cooler, cooling and then delivering the smoke into a belt sealing trolley, a dust collecting main tube and a dust removal station for treatment, and exhausting the gas directly from the water bath, the water bath cooler, but the following processes that the raw gas generated in the following processes can be directly: firstly, the dust content of raw gas is relatively high, and a small amount of spark is contained, and the raw gas directly enters the water bath cooler, so that the phenomenon that the pipeline of the water bath cooler is blocked is caused, and the spark dust directly enters the water bath cooler, so that high-temperature overlooking is caused, and relatively large potential safety hazards exist; secondly, the existing water bath cooler is carried out in a spraying mode, and because the temperature of the raw coke oven gas is high, the raw coke oven gas can generate larger water mist after entering the water bath cooler, so that better cooling and dust removing effects can not be realized, and the treatment burden of a subsequent dust removing station can be seriously increased. Therefore, it is objectively needed to develop a tamping coke oven side-charging coal smoke prevention and dust control device which is easy to implement, safe to use, good in smoke and dust water bath purification treatment effect and strong in practicability.

Disclosure of Invention

The utility model aims to provide a tamping coke oven side-charging coal smoke prevention and dust control device which is easy to implement, safe to use, good in smoke and dust water bath purification treatment effect and stronger in practicability.

The utility model aims at realizing like this, including the coke oven, the tedge, lead the cigarette car, belt seal butt joint dolly, dust collecting trunk and ground dust removal station, the mars trap has set gradually between tedge and belt seal butt joint dolly, rapid cooling dust remover and downcomer, the mars trap, rapid cooling dust remover installs on leading the cigarette car, rapid cooling dust remover includes dust removal case and symmetry setting rapid cooling case and the exhaust box in dust removal case top both sides, the lower part of rapid cooling case is sealed with the dust removal case through the bottom plate, the upper portion of rapid cooling case is provided with the coolant liquid inlet, the lower part is provided with the coolant liquid outlet, the vertical center tube that extends to the dust removal incasement that is provided with in inside of rapid cooling case, the upper end of center tube passes through air duct and mars trap intercommunication, the upper portion of dust removal case is provided with the absorption liquid import, the lower part is provided with a plurality of absorption liquid exports, the inside of dust removal case is provided with the water bath distributor with the center tube intercommunication, the top of exhaust box is provided with sealed lid, the lower part and the dust removal case intercommunication, the inside of exhaust box has set gradually 2 at least layers of gas-liquid separation layers and 1 layer active carbon adsorption layer from the bottom to the top.

Compared with the prior art, the device has the advantages that: firstly, the spark catcher is arranged before smoke enters the quenching dust remover, and the arranged spark catcher can intercept and filter dust with sparks in the smoke, so that the phenomena of pipeline blockage and more water mist caused by the fact that the dust with sparks enters the quenching dust remover are avoided, and the safety of smoke purification treatment can be effectively realized; the quenching dust remover is reasonable in structure, cooling liquid in the quenching box can rapidly cool flue gas, high-temperature corrosion of high-temperature smoke dust on equipment is avoided, the service life of the equipment can be effectively prolonged, meanwhile, the water bath distributor in the dust removing box can uniformly distribute the smoke dust in the dust removing box, dust in the smoke dust and absorption liquid are fully and effectively collided and mixed, and therefore a large amount of discharged smoke dust can be subjected to better water bath dust removal purification; in addition, the gas-liquid separation layer in the exhaust box can carry out gas-liquid separation on the smoke dust discharged after water bath to remove small liquid drops carried in the smoke dust, and the active carbon adsorption layer can further remove moisture in the smoke gas on the one hand and can adsorb dust and sulfur components in the smoke dust on the other hand, so that the dust removal and purification effects are further improved. The device has the advantages of easy implementation, safe use, good smoke and dust water bath purification treatment effect and stronger practicability, can generate better economic benefit and social benefit, and is easy to popularize and use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a spark arrester 7 and a quench dust collector 8 according to the present invention;

in the figure: 1-coke oven, 2-riser, 3-smoke guide vehicle, 4-belt sealing butt joint trolley, 5-dust collection dry pipe, 6-ground dust removal station, 7-Mars catcher, 71-intercept box, 72-ash bucket, 73-intercept plate, 74-intercept hole, 75-blowing main pipe, 76-horizontal pipe, 77-nozzle, 78-compressed air storage tank, 79-air inlet pipe, 8-quench dust remover, 81-dust removal box, 82-quench box, 83-exhaust box, 84-bottom plate, 85-cooling liquid inlet, 86-cooling liquid outlet, 87-central pipe, 88-air guide pipe, 89-absorption liquid inlet, 810-absorption liquid outlet, 811-gas-liquid separation layer, 812-activated carbon adsorption layer, 813-distribution cone, 814-distribution pipe, 815-flow blocking cover, 816-baffle plate and 9-downcomer.

Detailed Description

The following description of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the present invention in any way, and all modifications and improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

As shown in figures 1-2, the utility model comprises a coke oven 1, an ascending pipe 2, a smoke guiding car 3, a belt seal butt joint trolley 4, a dust collecting main pipe 5 and a ground dust removing station 6, wherein the coke oven 1, the ascending pipe 2, the smoke guiding car 3, the belt seal butt joint trolley 4, the dust collecting main pipe 5 and the ground dust removing station 6 are structures used in the prior art, a spark catcher 7, a rapid cooling dust remover 8 and a descending pipe 9 are sequentially arranged between the ascending pipe 2 and the belt seal butt joint trolley 4, the descending pipe 9 is communicated with the belt seal butt joint trolley 4, the spark catcher 7 and the rapid cooling dust remover 8 are arranged on the smoke guiding car 3, the rapid cooling dust remover 8 comprises a dust removing box 81, and a rapid cooling box 82 and an exhaust box 83 which are symmetrically arranged at two sides of the top of the dust removing box 81, bottom plate 84 and dust removal case 81 are passed through to the lower part of rapid cooling case 82 and are sealed, the upper portion of rapid cooling case 82 is provided with coolant liquid inlet 85, and the lower part is provided with coolant liquid outlet 86, and the inside of rapid cooling case 82 is vertical to be provided with the center tube 87 that extends to in the dust removal case 81, and air duct 88 and mars catcher 7 intercommunication are passed through to the upper end of center tube 87, the upper portion of dust removal case 81 is provided with absorption liquid import 89, and the lower part is provided with a plurality of absorption liquid exports 810, and the inside of dust removal case 81 is provided with the water bath distributor that communicates with center tube 87, the top of exhaust case 83 is provided with sealed lid, and the lower part and the dust removal case 81 intercommunication of exhaust case 83, and the inside from the bottom up of exhaust case 83 has set gradually 2 at least gas-liquid separation layers 811 and 1 layer of active carbon adsorption layer 812.

The working process of the device is that the cooling liquid is filled into the quenching tank 82 through the cooling liquid inlet 85, the cooling liquid can adopt ice water, liquid nitrogen and the like, the absorption liquid is added into the dust removing box 81 through the absorption liquid inlet 89, the absorption liquid adopts alkali liquor, the liquid level of the absorption liquid added into the dust removing box 81 is preferably two thirds of the height of the absorption liquid without the water bath distributor, and then, the smoke dust collected by the smoke guiding vehicle 3 is guided into the spark catcher 7 through the ascending pipe 2, the spark interceptor 7 can intercept and filter dust with sparks in the smoke dust, the phenomena of pipeline blockage and more water mist caused by the dust with sparks entering the quenching dust remover are avoided, the safety of smoke purification treatment can be effectively improved, smoke with spark and most dust removed by the spark catcher 7 enters the central tube 87 through the gas-guide tube 88, the smoke entering the central tube 87 is cooled down by quenching of cooling liquid, entering a water bath distributor, the water bath distributor can effectively shunt the smoke dust with large discharge capacity, the smoke dust is discharged into the absorption liquid through the water bath distributor, the dust in the smoke dust is fully and effectively collided and mixed with the absorption liquid, therefore, a large amount of discharged smoke dust can be better subjected to water bath dust removal purification, the smoke dust subjected to the water bath purification treatment enters the exhaust box 83, the gas-liquid separation layer 811 in the exhaust box 83 can be used for carrying out gas-liquid separation on the smoke dust and removing small liquid drops carried in the smoke dust, the active carbon adsorption layer 812 can be used for further removing moisture in the smoke dust on one hand and adsorbing dust and sulfur components in the smoke dust on the other hand, and the separated smoke dust enters the ground dust removal station through the descending pipe, the belt seal butt joint trolley 4 and the dust collection main pipe 5 for subsequent dust removal treatment. The device has the advantages of easy implementation, safe use, good smoke and dust water bath purification treatment effect and stronger practicability.

Further, the mars catcher 7 includes an intercepting box 71 and a dust hopper 72 installed at the bottom of the intercepting box 71, at least 2 intercepting plates 73 are vertically installed inside the intercepting box 71 at intervals, each intercepting plate 73 is provided with a plurality of intercepting holes 74, the bottoms of the intercepting boxes 71 on both sides of the intercepting plates 73 are provided with dust leaking grooves, when smoke dust with mars enters the mars interceptor 7 through the ascending pipe 2, the mars and dust in the smoke dust can be intercepted by the intercepting plates 73, the intercepted mars and dust can fall into the dust hopper 72 through the dust leaking grooves, due to the fact that at least 2 intercepting plates 73 are arranged in the intercepting box 71, the smoke dust with mars can be intercepted to the maximum extent after being intercepted by the plurality of intercepting plates 73, the smoke dust with mars can be prevented from entering the dust collector 8, safety is caused, the processing efficiency of the smoke dust is improved, preferably, the intercepting holes 74 on two adjacent intercepting plates 73 are arranged in a staggered manner, the intercepting holes 74 are conical intercepting holes 74, the intercepting holes 74 are arranged in a manner that the intercepting direction of the intercepting holes 74, the intercepting holes 74 are changed, the flow direction of the dust can be changed, and the dust can be changed into a conical shape of the dust, and the dust can be changed, and the dust can pass through the intercepting plates 73, and the dust can pass through the intercepting holes 73, so that the dust can pass through the intercepting holes 73, and the dust leaking effect of the dust can be changed in a curved manner of the dust.

After the intercepting plate 73 works for a period of time, in order to prevent the intercepting plate 73 from being blocked, a blowing assembly is arranged on one side of each intercepting plate 73 and comprises a blowing main pipe 75 and a horizontal pipe 76, the blowing main pipe 75 penetrates through the top of the intercepting box 71, the horizontal pipe 76 is vertically arranged at the lower end of the blowing main pipe 75, two ends of the horizontal pipe 76 are sealed, a plurality of nozzles 77 are uniformly arranged at the bottom of the horizontal pipe 76, the outlets of the nozzles 77 face the intercepting plate 73 side, a compressed air storage tank 78 is arranged at the top of the intercepting box 71, an air inlet pipe 79 communicated with the top of the blowing main pipe 75 is arranged on the compressed air storage tank 78, an automatic pulse valve is arranged on the air inlet pipe 79, when the intercepting plate 73 needs to be subjected to ash removal treatment, the pulse valve is opened, compressed air in the compressed air storage tank 78 enters the horizontal pipe 76 through the air inlet pipe 79 and the blowing main pipe 75 and is sprayed out of the nozzles 77, and the compressed air at the spraying position can be subjected to ash removal treatment.

Further, the water bath distributor comprises a distribution cone 813 and distribution pipes 814, the distribution cone 813 is hollow inside, the upper end of the distribution cone 813 is communicated with the central pipe 87, the distribution pipes 814 are multiple, the distribution pipes 814 are vertically installed at the bottom of the distribution cone 813, a plurality of flow blocking covers 815 are installed on the outer wall of each distribution pipe 814 at equal intervals from top to bottom, after quenching, smoke enters the distribution cone through the central pipe, the distribution cone can disperse smoke airflow to achieve a flow stabilizing effect, and then the smoke is discharged into absorption liquid through the bottoms of the distribution pipes to be purified in a water bath mode.

Further, in order to improve the effect of smoke water bath purification, a plurality of baffle plates 816 are installed inside the dust removal box 81 between the exhaust box 83 and the quenching box 82 in a vertically staggered manner, a plurality of absorbing liquid outlets 810 are respectively arranged at the bottoms of the dust removal boxes 81 on the two sides of the baffle plates 816, and the flow direction of the smoke can be changed by the arrangement of the baffle plates 816, so that the smoke flows in a curve shape in the absorbing liquid, which is beneficial to improving the contact time between the smoke and the absorbing liquid and further improving the effect of smoke water bath purification.

Further, gas-liquid separation layer 811 includes polylith equidistant and the perpendicular buckled plate of arranging, connects fixedly through the flat billet between the top of two adjacent buckled plates and the bottom, adopts buckled plate structure preparation gas-liquid separation layer, and it is with low costs, and the installation is changed easily, and the separation effect is better.

Claims

1. The utility model provides a tamping coke oven side coal-charging smoke prevention and dust control device, includes coke oven (1), tedge (2), leads cigarette car (3), belt seal butt joint dolly (4), dust collection main pipe (5) and ground dust removal station (6), its characterized in that: a spark catcher (7), a quenching dust remover (8) and a down pipe (9) are sequentially arranged between the ascending pipe (2) and the belt sealing butt joint trolley (4), the spark catcher (7) and the quenching dust remover (8) are arranged on the smoke guide vehicle (3), the quenching dust remover (8) comprises a dust removing box (81), and a quenching box (82) and an exhaust box (83) which are symmetrically arranged at the two sides of the top of the dust removing box (81), the lower part of the quenching box (82) is sealed with the dust removing box (81) through a bottom plate (84), the upper part of the quenching box (82) is provided with a cooling liquid inlet (85), the lower part of the quenching box (82) is provided with a cooling liquid outlet (86), a central pipe (87) extending into the dust removal box (81) is vertically arranged in the quenching box (82), the upper end of the central pipe (87) is communicated with the Mars catcher (7) through a gas guide pipe (88), the upper part of the dust removal box (81) is provided with an absorption liquid inlet (89), the lower part of the dust removal box is provided with a plurality of absorption liquid outlets (810), a water bath distributor communicated with the central pipe (87) is arranged in the dust removal box (81), the top of exhaust case (83) is provided with sealed lid, the lower part and dust removal case (81) intercommunication of exhaust case (83), and the inside from the bottom up of exhaust case (83) has set gradually 2 at least gas-liquid separation layers (811) and 1 layer activated carbon adsorption layer (812).

2. The tamping coke oven side coal-charging smoke prevention and dust control device of claim 1, which is characterized in that: mars trap (7) include intercept box (71) and install ash bucket (72) in intercept box (71) bottom, the inside interval of intercept box (71) is vertical installs 2 at least interception boards (73), all is provided with a plurality of interception holes (74) on every interception board (73), all is provided with hourglass ash chute in intercept box (71) bottom of interception board (73) both sides.

3. The tamping coke oven side-charging coal smoke prevention and dust control device of claim 2, which is characterized in that: the intercepting holes (74) on two adjacent intercepting plates (73) are arranged in a staggered mode, the intercepting holes (74) are conical, and the diameters of the intercepting holes (74) are reduced in sequence along the flow direction of the smoke.

4. The tamping coke oven side-charging coal smoke prevention and dust control device of claim 2, which is characterized in that: one side of blocking board (73) at every all is provided with the jetting subassembly, the jetting subassembly is responsible for (75) and horizontal pipe (76) including jetting, the jetting is responsible for (75) and runs through the top of installing in interception case (71), the lower extreme and the both ends that are responsible for (75) are installed in jetting perpendicularly to horizontal pipe (76) are sealed, a plurality of nozzles (77) are installed to the bottom equipartition of horizontal pipe (76), and the export orientation of nozzle (77) blocks board (73) side, the top of interception case (71) is provided with compressed air storage tank (78), be provided with on compressed air storage tank (78) and be responsible for intake pipe (79) of (75) top intercommunication with the jetting, install the automatic pulse valve on intake pipe (79).

5. The tamping coke oven side-charging coal smoke prevention and dust control device of claim 1, which is characterized in that: the water bath distributor comprises a distribution cone (813) and distribution pipes (814), wherein the distribution cone (813) is hollow inside, the upper end of the distribution cone (813) is communicated with a central pipe (87), the distribution pipes (814) are multiple, the distribution pipes (814) are vertically installed at the bottom of the distribution cone (813), and a plurality of flow blocking covers (815) are installed on the outer wall of each distribution pipe (814) at equal intervals from top to bottom.

6. The tamping coke oven side coal-charging smoke prevention and dust control device of claim 5, which is characterized in that: the flow resisting hood (815) is of a cone structure with a small upper end and a large lower end.

7. The tamping coke oven side-charging coal smoke prevention and dust control device of claim 1, which is characterized in that: a plurality of baffle plates (816) are arranged in the dust removing box (81) between the exhaust box (83) and the quenching box (82) in a vertically staggered mode, and a plurality of absorption liquid outlets (810) are respectively arranged at the bottoms of the dust removing boxes (81) on two sides of the baffle plates (816).

8. The tamping coke oven side-charging coal smoke prevention and dust control device of claim 1, which is characterized in that: the gas-liquid separation layer (811) comprises a plurality of corrugated plates which are equidistant and vertically arranged, and the tops and the bottoms of the two adjacent corrugated plates are fixedly connected through flat steel bars.