阅读说明：本技术 一种小焦炉用低水分环保熄焦车及其运行工艺 (Low-moisture environment-friendly coke quenching car for small coke oven and operation process thereof ) 是由 张明星 杜屏 周俊兰 吴磊 周小虎 袁卫 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种小焦炉用低水分环保熄焦车及其运行工艺,该熄焦车包括推车、熄焦箱、水箱、上水管、雾化喷头、除尘罩、除尘软管、上水管接口、上水阀、水阀开关、定位杆、上水管进水定位、上水管软管、下水管进水定位、下水管软管、蒸气出口、下水阀、下水管接口、下水管、出水孔,其中,所述熄焦箱和所述水箱并排设置于所述推车上。本发明的小焦炉用低水分环保熄焦车,采用顶熄和底熄相结合的湿熄焦方式,且顶熄和底熄水量可独立精确调节,在缩短熄焦时间的同时可以更稳定的控制焦炭水分,避免局部水分过高。熄焦过程中产生的蒸气通入水中净化除尘,不污染环境,可以保证操作人员的职业健康。(The invention discloses a low-moisture environment-friendly coke quenching car for a small coke oven and an operation process thereof. The low-moisture environment-friendly coke quenching car for the small coke oven adopts a wet coke quenching mode combining top quenching and bottom quenching, and the water amounts of the top quenching and the bottom quenching can be independently and accurately adjusted, so that the coke quenching time is shortened, the moisture of coke can be more stably controlled, and the overhigh local moisture is avoided. The steam generated in the coke quenching process is introduced into water for purification and dust removal, so that the environment is not polluted, and the occupational health of operators can be ensured.)

1. The low-moisture environment-friendly coke quenching car for the small coke oven is characterized by comprising a cart, a coke quenching box, a water tank, a water feeding pipe, an atomizing spray head, a dust hood, a dust removal hose, a water feeding pipe interface, a water feeding valve, a water valve switch, a positioning rod, a water feeding pipe water inlet positioning, a water feeding pipe hose, a water discharging pipe water inlet positioning, a water discharging pipe hose, a steam outlet, a water discharging valve, a water discharging pipe interface, a water discharging pipe and a water outlet hole, wherein the coke quenching box and the water tank are arranged on the cart in parallel;

the coke quenching box is of a box body structure with an opening at the upper part; the upper water pipe is arranged on the side surface of the top of the coke quenching box body, and more than one atomizing nozzle is arranged below the pipe body of the upper water pipe; one end of the water feeding pipe connector extends into the water feeding pipe, the other end of the water feeding pipe connector penetrates through the side wall of the water tank body and is connected with a water feeding pipe hose, and a water feeding valve is arranged at the port of the other end of the water feeding pipe connector; the water feeding hose is connected to the water feeding pipe for water feeding positioning; the lower water pipe is arranged in the middle of the bottom of the coke quenching box body, and more than one water outlet hole is formed above the pipe body of the lower water pipe; one end of the lower water pipe interface extends into the lower water pipe, the other end of the lower water pipe interface penetrates through the side wall of the water tank body and is connected to a lower water pipe hose, and a lower water valve is arranged at the port of the other end of the lower water pipe interface; the sewer pipe hose is connected to the sewer pipe water inlet positioning; the positioning rod is of a hollow tubular structure and is vertically arranged on the inner side wall of the water tank; the water inlet positioning of the upper water pipe and the water inlet positioning of the lower water pipe are both sleeved on the positioning rod; more than one steam outlet is arranged on one side rod wall in the water tank in the middle of the positioning rod; the dust hood is arranged at the top of the coke quenching box body; the top of the dust hood is connected with one end of a dust removal hose, and the other end of the dust removal hose is connected to the top of the positioning rod; the water valve switch is arranged on the side wall of one side, close to the coke quenching box, of the water tank body, the water feeding valve and the switch handle of the water discharging valve are simultaneously fixed on the water valve switch, and the on-off states of the water feeding valve and the water discharging valve can be simultaneously controlled by pulling the water valve switch up and down.

2. The low-moisture environment-friendly coke quenching car for the small coke oven as claimed in claim 1, wherein the coke quenching box is movably arranged on the cart, and the box body can be inclined as required.

3. The low-moisture environment-friendly coke quenching car for the small coke oven as claimed in claim 1, wherein the number of the atomizing nozzles is more than 3, and the included angle between the atomizing nozzles and the side wall of the quenching box body is 30-50 degrees; the number of the water outlet holes is more than 3.

4. The low-moisture environment-friendly quenching car for the small coke oven as claimed in claim 1, wherein the downcomer and the locating rod are made of stainless steel material with corrosion resistance and high temperature resistance.

5. The low-moisture environment-friendly coke quenching car for the small coke oven as claimed in claim 1, wherein the water feeding hose, the water discharging hose and the dust removing hose are all made of rubber.

6. The environmentally-friendly coke quenching car for the small coke oven with the low moisture content as claimed in claim 1, wherein the number of the steam outlets is more than 3.

7. The low-moisture environment-friendly coke quenching car for the small coke oven as claimed in claim 1, wherein a water valve switch limit indication is further marked on the box body of the water tank.

8. The environmentally-friendly coke quenching car with low moisture for the small coke oven as claimed in claim 1, wherein the height adjustment range of the water inlet positioning of the water feeding pipe is from the liquid level in the water tank to the height of the water feeding pipe, and the height adjustment range of the water inlet positioning of the water outlet pipe is from the liquid level in the water tank to the height of the water outlet pipe.

9. The operation process of the low-moisture environment-friendly coke quenching car for the small coke oven as claimed in claim 1, which is characterized by comprising the following steps:

step 1) adjusting the water inlet positioning height of an upper water pipe to 8-10 cm below the liquid level in advance before receiving red coke, and adjusting the water inlet positioning height of a lower water pipe to 10-12 cm below the liquid level;

step 2) filling red coke into a coke quenching tank body, covering a dust hood, opening a water feeding valve and a water discharging valve simultaneously through a water valve switch, spraying coke quenching water in a water tank on the red coke through an upper water pipe hose, a lower water pipe hose, an atomizing nozzle and a water outlet hole by means of gravity, and discharging generated steam into the water tank through the dust hood, the dust removing hose and a positioning rod and a steam outlet for purification;

and 3) after quenching is finished, pulling out the dust hood, the hose on the water supply pipe connector and the hose on the sewer pipe connector, and pouring coke in the quenching tank into a designated area to finish quenching operation.

Technical Field

The invention belongs to the technical field of coking equipment, and particularly relates to a low-moisture environment-friendly coke quenching car for a small coke oven and an operation process thereof.

Background

With the upsizing of domestic blast furnaces, the quality requirements of the blast furnaces on coke are gradually improved. The contradiction is that the storage amount of the high-quality coke-rich coal is reduced year by year, and the adding proportion of the coke-rich coal in the blended coal is limited. Under the background, the compatibility among various coal types is researched, the coal blending structure is optimized, the coking performance of the blended coal is improved through the complementarity among the various coal types, and the improvement of the coke quality becomes very important.

Most of domestic coke plants research coal blending schemes and guide production through 40kg experimental coke ovens, and coke quenching modes comprise dry coke quenching and wet coke quenching. Because the dry quenching is relatively complex in equipment and far higher in implementation cost than wet quenching and less in application, most laboratories still mainly adopt a direct spraying wet quenching mode at present. However, the direct spraying can cause the moisture of the upper coke to be too high or red coke to be arranged at the lower part in the quenching process, thereby influencing the implementation result. In addition, the toxic vapor generated in the quenching process pollutes the environment and also threatens the physical health of operators. Therefore, it is necessary to design a quenching device to improve the operation environment while improving the quenching effect.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the low-moisture environment-friendly coke quenching car for the small coke oven and the operation process thereof, and the coke quenching way combining top quenching and bottom quenching is adopted, so that the environment is not polluted, and the occupational health of operators can be ensured.

The invention is realized by the following technical scheme:

a low-moisture environment-friendly coke quenching car for a small coke oven comprises a cart, a coke quenching box, a water tank, a water feeding pipe, an atomizing spray head, a dust hood, a dust removal hose, a water feeding pipe interface, a water feeding valve, a water valve switch, a positioning rod, a water feeding pipe water inlet positioning, a water feeding pipe hose, a sewer pipe water inlet positioning, a sewer pipe hose, a steam outlet, a sewer valve, a sewer pipe interface, a sewer pipe and a water outlet hole, wherein the coke quenching box and the water tank are arranged on the cart in parallel;

the coke quenching box is of a box body structure with an opening at the upper part; the upper water pipe is arranged on the side surface of the top of the coke quenching box body, and more than one atomizing nozzle is arranged below the pipe body of the upper water pipe; one end of the water feeding pipe connector extends into the water feeding pipe, the other end of the water feeding pipe connector penetrates through the side wall of the water tank body and is connected with a water feeding pipe hose, and a water feeding valve is arranged at the port of the other end of the water feeding pipe connector; the water feeding hose is connected to the water feeding pipe for water feeding positioning; the lower water pipe is arranged in the middle of the bottom of the coke quenching box body, and more than one water outlet hole is formed above the pipe body of the lower water pipe; one end of the lower water pipe interface extends into the lower water pipe, the other end of the lower water pipe interface penetrates through the side wall of the water tank body and is connected to a lower water pipe hose, and a lower water valve is arranged at the port of the other end of the lower water pipe interface; the sewer pipe hose is connected to the sewer pipe water inlet positioning; the positioning rod is of a hollow tubular structure and is vertically arranged on the inner side wall of the water tank; the water inlet positioning of the upper water pipe and the water inlet positioning of the lower water pipe are both sleeved on the positioning rod; more than one steam outlet is arranged on one side rod wall in the water tank in the middle of the positioning rod; the dust hood is arranged at the top of the coke quenching box body; the top of the dust hood is connected with one end of a dust removal hose, and the other end of the dust removal hose is connected to the top of the positioning rod; the water valve switch is arranged on the side wall of one side, close to the coke quenching box, of the water tank body, the water feeding valve and the switch handle of the water discharging valve are simultaneously fixed on the water valve switch, and the on-off states of the water feeding valve and the water discharging valve can be simultaneously controlled by pulling the water valve switch up and down.

Preferably, the coke quenching box is movably arranged on the cart, and the box body can be inclined according to the requirement.

Preferably, the number of the atomizing nozzles is more than 3, and the included angle between the atomizing nozzles and the side wall of the coke quenching box body is 30-50 degrees; the number of the water outlet holes is more than 3.

Preferably, the downcomer and locating lever are corrosion-resistant, high temperature resistant stainless steel.

Preferably, the water feeding hose, the water discharging hose and the dust removing hose are all made of rubber materials.

Preferably, the number of the steam outlets is 3 or more.

Preferably, a water valve switch limit indication is further marked on the tank body of the water tank.

Preferably, the height adjusting range of the water inlet positioning of the upper water pipe is the height from the liquid level in the water tank to the upper water pipe, and the height adjusting range of the water inlet positioning of the lower water pipe is the height from the liquid level in the water tank to the lower water pipe.

An operation process of a low-moisture environment-friendly coke quenching car for a small coke oven comprises the following steps:

step 1) adjusting the water inlet positioning height of an upper water pipe to 8-10 cm below the liquid level in advance before receiving red coke, and adjusting the water inlet positioning height of a lower water pipe to 10-12 cm below the liquid level;

step 2) filling red coke into a coke quenching tank body, covering a dust hood, opening a water feeding valve and a water discharging valve simultaneously through a water valve switch, spraying coke quenching water in a water tank on the red coke through an upper water pipe hose, a lower water pipe hose, an atomizing nozzle and a water outlet hole by means of gravity, and discharging generated steam into the water tank through the dust hood, the dust removing hose and a positioning rod and a steam outlet for purification;

and 3) after quenching is finished, pulling out the dust hood, the hose on the water supply pipe connector and the hose on the sewer pipe connector, and pouring coke in the quenching tank into a designated area to finish quenching operation.

The invention has the following beneficial effects:

the low-moisture environment-friendly coke quenching car for the small coke oven adopts a wet coke quenching mode combining top quenching and bottom quenching, and the water amounts of the top quenching and the bottom quenching can be independently and accurately adjusted, so that the coke quenching time is shortened, the moisture of coke can be more stably controlled, and the overhigh local moisture is avoided. The steam generated in the coke quenching process is introduced into water for purification and dust removal, so that the environment is not polluted, and the occupational health of operators can be ensured.

Drawings

FIG. 1 is a schematic structural diagram of a low-moisture environment-friendly coke quenching car for a small coke oven;

in the figure: 1. pushing a cart; 2. a coke quenching box; 3. a water tank; 4. a water feeding pipe; 5. an atomizing spray head; 6. a dust hood; 7. a dust removal hose; 8. a water supply pipe connector; 9. a water supply valve; 10. a water valve switch; 11. positioning a rod; 12. water inlet positioning of the water feeding pipe; 13. a water supply hose; 14. the sewer pipe is positioned by water inlet; 15. a sewer hose; 16. a vapor outlet; 17. a drain valve; 18. a water outlet pipe interface; 19. a sewer pipe; 20. a water outlet hole; 21. and (4) water valve switch limit indication.

Detailed Description

The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.

Example 1

A low-moisture environment-friendly coke quenching car for a small coke oven is shown in figure 1 and comprises a cart 1, a coke quenching box 2, a water tank 3, a water feeding pipe 4, an atomizing spray head 5, a dust hood 6, a dust removal hose 7, a water feeding pipe connector 8, a water feeding valve 9, a water valve switch 10, a positioning rod 11, a water feeding pipe water inlet positioning 12, a water feeding pipe hose 13, a sewer pipe water inlet positioning 14, a sewer pipe hose 15, a steam outlet 16, a sewer valve 17, a sewer pipe connector 18, a sewer pipe 19 and a water outlet 20, wherein the coke quenching box 2 and the water tank 3 are arranged on the cart 1 in parallel;

the coke quenching box 2 is of a box body structure with an opening at the upper part; the upper water pipe 4 is arranged on the side surface of the top of the box body of the coke quenching box 2, and a plurality of atomizing nozzles 5 are arranged below the pipe body of the upper water pipe 4; one end of the upper water pipe connector 8 extends into the upper water pipe 4, the other end of the upper water pipe connector penetrates through the side wall of the tank body of the water tank 3 and is connected with an upper water pipe hose 13, and a water feeding valve 9 is arranged at the port of the other end of the upper water pipe connector 8; the upper water pipe hose 13 is connected to the upper water pipe water inlet positioning 12; the downcomer 19 is arranged in the middle of the bottom of the coke quenching box 2, and a plurality of water outlet holes 20 are formed above the body of the downcomer 19; one end of the sewer pipe interface 18 extends into the sewer pipe 19, the other end of the sewer pipe interface penetrates through the side wall of the tank body of the water tank 3 and is connected to the sewer pipe hose 15, and a sewer valve 17 is arranged at the port of the other end of the sewer pipe interface 18; the downcomer hose 18 is connected to the downcomer inlet location 14; the positioning rod 11 is a hollow tubular structure and is vertically arranged on the inner side wall of the water tank 3; the water inlet positioning 12 of the upper water pipe and the water inlet positioning 14 of the lower water pipe are both sleeved on the positioning rod 11; more than one steam outlet 16 is arranged on one side rod wall in the water tank 3 in the middle of the positioning rod 11; the dust hood 6 is arranged at the top of the coke quenching box 2; the top of the dust hood 6 is connected with one end of a dust removal hose 7, and the other end of the dust removal hose 7 is connected to the top of the positioning rod 11; the water valve switch 10 is arranged on the side wall of one side, close to the coke quenching box 2, of the box body of the water tank 3, the water feeding valve 9 and the switch handle of the water discharging valve 17 are simultaneously fixed on the water valve switch 10, and the opening and closing states of the water feeding valve 9 and the water discharging valve 17 can be simultaneously controlled by pulling the water valve switch 10 up and down.

The coke quenching box 2 is movably arranged on the cart 1, and the box body can be inclined according to the requirement.

According to a preferable scheme, the number of the atomizing nozzles 5 is more than 3, and the included angle between each atomizing nozzle 5 and the side wall of the coke quenching box 2 is 30-50 degrees; the number of the water outlet holes 20 is more than 3.

In a preferable scheme, the positioning rod 11 and the downcomer 19 are made of stainless steel with corrosion resistance and high temperature resistance.

In a preferable scheme, the dust removal hose 7, the water feeding hose 13 and the water discharging hose 15 are made of rubber materials.

In a preferred embodiment, the number of the steam outlets 16 is more than 3.

In a preferred scheme, a water valve switch limit indicator 21 is further marked on the tank body of the water tank 3.

In a preferable scheme, the height adjusting range of the upper water pipe water inlet positioning 12 is the height from the liquid level in the water tank 3 to the upper water pipe 4, and the height adjusting range of the lower water pipe water inlet positioning 14 is the height from the liquid level in the water tank 3 to the lower water pipe 19.

An operation process of a low-moisture environment-friendly coke quenching car for a small coke oven comprises the following specific steps:

(1) and adjusting the water inlet positioning height of the water feeding pipe to 8-10 cm below the liquid level in advance before the red coke is connected, and adjusting the water inlet positioning height of the water discharging pipe to 10-12 cm below the liquid level.

(2) The coke quenching tank is filled with red coke and then covered with a dust hood, a water feeding valve and a water discharging valve are opened simultaneously through a water valve switch, coke quenching water in the water tank is sprayed on the red-hot coke through an upper water pipe hose, a lower water pipe hose, an atomizing nozzle and a water outlet hole by means of gravity, and generated steam is discharged into the water tank through the dust hood, the dust removing hose and a positioning rod and is purified through a steam outlet.

(4) After quenching is finished, pulling out the dust hood, the hose on the water supply pipe connector and the water drain pipe connector, and dumping coke in the quenching tank to a designated area to finish quenching operation.

Example 2

Based on the operation process of the low-moisture environment-friendly coke quenching car for the small coke oven, which is described in the embodiment 1, the specific steps are as follows:

(1) before the red coke is connected, the water inlet positioning height of the water feeding pipe is adjusted to be 10cm below the liquid level in advance, and the water inlet positioning height of the water discharging pipe is adjusted to be 12cm below the liquid level.

(2) The coke quenching tank is filled with 1000 ℃ red coke, then a dust hood is covered, a water feeding valve and a water discharging valve are opened simultaneously through a water valve switch, the coke quenching water in the water tank is sprayed on the red-hot coke through an upper water pipe hose, a lower water pipe hose, an atomizing nozzle and a water outlet hole by means of gravity, and the generated steam is discharged into the water tank through the dust hood, a rubber hose and a positioning rod and is purified through a steam outlet.

(3) After quenching is finished, pulling out the dust hood, the hose on the water supply pipe connector and the hose on the water drain pipe connector, dumping coke in a quenching tank to a designated area, finishing quenching operation, and measuring and displaying that the coke moisture is 5%.

Example 3

Based on the operation process of the low-moisture environment-friendly coke quenching car for the small coke oven, which is described in the embodiment 1, the specific steps are as follows:

(1) before the red coke is connected, the water inlet positioning height of the water feeding pipe is adjusted to be 8cm below the liquid level in advance, and the water inlet positioning height of the water discharging pipe is adjusted to be 10cm below the liquid level.

(2) The coke quenching tank is filled with 1000 ℃ red coke, then a dust hood is covered, a water feeding valve and a water discharging valve are opened simultaneously through a water valve switch, the coke quenching water in the water tank is sprayed on the red-hot coke through an upper water pipe hose, a lower water pipe hose, an atomizing nozzle and a water outlet hole by means of gravity, and the generated steam is discharged into the water tank through the dust hood, a rubber hose and a positioning rod and is purified through a steam outlet.

(3) After quenching is finished, pulling out the dust hood, the hose on the water supply pipe connector and the hose on the water drain pipe connector, dumping coke in a quenching tank to a designated area, finishing quenching operation, and measuring and displaying that the coke moisture is 3%.