Coke oven air distribution system

Abstract

The utility model relates to the technical field of dust removal of coke ovens, in particular to an air distribution system of a coke oven, which is characterized in that cold air entering an annular pipe is sprayed into a dust removal pipe through a plurality of groups of annular mounting seats and a plurality of groups of rotary spray head components, and the rotary spray head components rotate to spray out the cold air; cold air is in uniform contact with high-temperature tail gas in the dust removal pipe, so that the cooling uniformity of the high-temperature tail gas is improved; comprising a dust removal pipe, a flue gas temperature detector, an annular pipe, annular mounting bases, an air inlet pipe and an electromagnetic valve, the flue gas temperature detector is arranged on the inner side of the dust removal pipe, the annular pipe is arranged on the inner side wall of the dust removal pipe and located on the rear side of the flue gas temperature detector, and the inner side wall of the annular pipe is circumferentially communicated with the annular mounting bases; the input end of the air inlet pipe extends to the inner side of the dust removal pipe and communicates with the input end of the annular pipe, an electromagnetic valve is installed on the air inlet pipe and electrically connected with the flue gas temperature detector, and each rotary spray head assembly is rotationally installed at the output end of the annular installation base.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven dust removal, in particular to a coke oven air distribution system. Background Art

[0002] The air distribution device is an indispensable equipment in the coke oven dust removal system. During the coke oven dust removal operation, it is normal for the fans of the coal loading system and the coke discharging system to run at a low speed due to system switching.

[0003] In the prior art, there is a Chinese utility model patent with announcement number CN206112112U, which discloses an air distribution device for coke oven dust removal, including a valve body, a valve plate and a pneumatic unit. The valve body and the valve plate adopt a pneumatic butterfly valve structure; the driving shaft of the valve plate is connected to the mechanical shaft of the pneumatic unit; the pneumatic unit is fixed to the upper end of the valve body by a bracket.

[0004] During use, it was found that the cooling air entering the flue could not cool the high-temperature exhaust gas evenly, resulting in poor cooling uniformity of the high-temperature exhaust gas. Therefore, it is very necessary to invent a coke oven air distribution system that can evenly cool the high-temperature exhaust gas. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a coke oven air distribution system for evenly and quickly cooling high-temperature tail gas.

[0006] The utility model discloses a coke oven air distribution system, comprising a dust removal pipe, a smoke temperature detector, an annular pipe, an annular mounting seat, an air intake pipe and an electromagnetic valve, wherein the smoke temperature detector is arranged inside the dust removal pipe, the inner wall of the dust removal pipe is provided with an annular pipe at the rear side of the smoke temperature detector, the inner wall of the annular pipe is circumferentially connected with a plurality of annular mounting seats, the input end of the air intake pipe extends to the inner side of the dust removal pipe and is connected with the input end of the annular pipe, the air intake pipe is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with the smoke temperature detector, and further comprises a rotating nozzle assembly, each rotating nozzle assembly The components are rotatably installed at the output end of the annular mounting seat; the solenoid valve is in a closed state under normal circumstances. When the flue gas temperature detector detects that the temperature of the flue gas at the inlet of the dust collector is greater than 120 degrees, the solenoid valve is automatically opened, so that the external cold air enters the annular pipe through the air inlet pipe, and the cold air entering the annular pipe is sprayed into the inside of the dust collection pipe through multiple groups of annular mounting seats and multiple groups of rotating nozzle assemblies. The multiple groups of rotating nozzle assemblies rotate to spray cold air, so that the cold air is evenly contacted with the high-temperature exhaust gas inside the dust collection pipe, thereby improving the uniformity of cooling the high-temperature exhaust gas.

[0007] Preferably, the rotating nozzle assembly includes a rotating joint, an output pipe, an L-shaped pipe, a spray pipe and a nozzle. The output pipe is rotatably connected to the output end of the annular mounting seat through the rotating joint. The output end of the outer wall of the output pipe is provided with an L-shaped pipe, and the output end of the L-shaped pipe is provided with a spray pipe. The outer wall of the spray pipe away from the L-shaped pipe is provided with two groups of nozzles. When the solenoid valve is opened, cold air enters the interior of the annular pipe through the air intake pipe, and the cold air entering the annular pipe enters the spray pipe through the annular mounting seat, the output pipe and the L-shaped pipe and is sprayed out through the nozzle. Since the L-shaped pipe and the nozzle are arranged vertically with the output pipe, when the cold air is sprayed through the nozzle, the output pipe rotates with the cooperation of the rotating joint, so that the multiple groups of nozzles rotate, thereby realizing the rotating spraying of cold air.

[0008] Preferably, it also includes a filter box, a sealing plate, an internal screw hole, a filter element and a bolt. The filter box is arranged on the air inlet pipe, a chamber is arranged inside the filter box, a filter element is arranged in the chamber, an internal screw hole is arranged on the top of the filter box, a bolt is arranged on the sealing plate, and the bolt is adapted to the internal screw hole. The filter element is placed in the chamber, and then the bolt is threadedly connected to the internal screw hole, so that the sealing plate seals the filter element, and the filter element filters impurities in the cold air, thereby improving the cleanliness of the cold air.

[0009] Preferably, it also includes a fixing rod and a groove. The top of the sealing plate is provided with a groove, and the fixing rod is fixedly installed in the groove. When replacing the filter element, multiple sets of bolts are unscrewed, and the staff puts their hands into the groove and holds the fixing rod to move the sealing plate, thereby improving convenience.

[0010] Preferably, a sealing gasket is further included, and a sealing gasket is arranged at the bottom end of the sealing plate; and the sealing performance is improved by arranging a sealing gasket between the bottom end of the sealing plate and the top end of the filter box.

[0011] Preferably, it also includes an annular flat washer, and the outer side walls of the bolts are respectively covered with an annular flat washer; the bolts are threadedly connected to the inner screw holes, and the bolts increase the contact area with the top of the sealing plate through the annular flat washer, thereby improving the firmness of the connection.

[0012] Preferably, the outer side wall of the bolt is wrapped with polytetrafluoroethylene raw tape.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the solenoid valve is in a closed state under normal circumstances. When the flue gas temperature detector detects that the temperature of the flue gas at the dust collector inlet is greater than one hundred and twenty degrees, the solenoid valve is automatically opened, so that the outside cold air enters the annular tube through the air intake pipe. The cold air entering the annular tube is sprayed to the inside of the dust collection pipe through multiple groups of annular mounting seats and multiple groups of rotating nozzle assemblies respectively. The multiple groups of rotating nozzle assemblies rotate to spray cold air, so that the cold air is evenly contacted with the high-temperature exhaust gas inside the dust collection pipe, thereby improving the uniformity of cooling the high-temperature exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 2 yes Figure 1 A partial enlarged structural diagram of the middle part;

[0016] Figure 3 yes Figure 1 A schematic diagram of the partially enlarged structure of the middle B part;

[0017] Figure 4 It is an enlarged structural diagram of the annular tube and the annular mounting seat;

[0018] Figure 5 yes Figure 4 A schematic diagram of the partially enlarged structure of the middle C part;

[0019] Figure 6 It is a schematic diagram of the axonometric structure of the utility model;

[0020] Figure 7 It is a front structural schematic diagram of the utility model;

[0021] Markings in the attached drawings: 1. dust removal pipe; 2. flue gas temperature detector; 3. annular pipe; 4. annular mounting seat; 5. air inlet pipe; 6. solenoid valve; 7. rotary joint; 8. output pipe; 9. L-shaped pipe; 10. air spray pipe; 11. nozzle; 12. filter box; 13. sealing plate; 14. inner screw hole; 15. filter element; 16. bolt; 17. fixing rod; 18. groove; 19. sealing gasket; 20. annular flat gasket. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0023] Example 1

[0024] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a coke oven air distribution system of the utility model comprises a dust removal pipe 1, a flue gas temperature detector 2, an annular pipe 3, an annular mounting seat 4, an air intake pipe 5 and an electromagnetic valve 6, the flue gas temperature detector 2 is arranged inside the dust removal pipe 1, the inner wall of the dust removal pipe 1 is provided with an annular pipe 3 at the rear side of the flue gas temperature detector 2, the inner wall of the annular pipe 3 is circumferentially connected with multiple groups of annular mounting seats 4, the input end of the air intake pipe 5 extends to the inside of the dust removal pipe 1 and is connected with the input end of the annular pipe 3, the air intake pipe 5 is installed with an electromagnetic valve 6, the electromagnetic valve 6 is electrically connected to the flue gas temperature detector 2, and also comprises a rotary nozzle assembly, each group of rotary nozzle assemblies is rotatably mounted on the output end of the annular mounting seat 4 respectively;

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, the rotary nozzle assembly includes a rotary joint 7, an output pipe 8, an L-shaped pipe 9, an air jet pipe 10 and a nozzle 11. The output pipe 8 is rotatably connected to the output end of the annular mounting seat 4 through the rotary joint 7. The output end of the outer wall of the output pipe 8 is provided with an L-shaped pipe 9. The output end of the L-shaped pipe 9 is provided with an air jet pipe 10. The air jet pipe 10 is provided with two groups of nozzles 11 away from the outer wall of the L-shaped pipe 9.

[0026] In this embodiment, the solenoid valve 6 is normally in a closed state. When the flue gas temperature detector 2 detects that the temperature of the flue gas at the dust collector inlet is greater than one hundred and twenty degrees, the solenoid valve 6 is automatically opened, so that the external cold air enters the annular tube 3 through the air intake pipe 5. The cold air entering the annular tube 3 is sprayed to the inside of the dust removal pipe 1 through multiple groups of annular mounting seats 4 and multiple groups of rotating nozzle assemblies. The solenoid valve 6 is opened, and the cold air enters the annular tube 3 through the air intake pipe 5. The cold air entering the annular tube 3 enters the air spray pipe 10 through the annular mounting seat 4, the output pipe 8, and the L-shaped pipe 9 and is sprayed out through the nozzle 11. Since the L-shaped pipe 9 and the nozzle 11 are vertically arranged with the output pipe 8, when the cold air is sprayed out through the nozzle 11, the output pipe 8 rotates with the cooperation of the rotating joint 7, so that the multiple groups of nozzles 11 rotate, thereby realizing the rotational spraying of the cold air.

[0027] Example 2

[0028] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a coke oven air distribution system of the utility model comprises a dust removal pipe 1, a flue gas temperature detector 2, an annular pipe 3, an annular mounting seat 4, an air intake pipe 5 and an electromagnetic valve 6, the flue gas temperature detector 2 is arranged inside the dust removal pipe 1, the inner wall of the dust removal pipe 1 is provided with an annular pipe 3 at the rear side of the flue gas temperature detector 2, the inner wall of the annular pipe 3 is circumferentially connected with multiple groups of annular mounting seats 4, the input end of the air intake pipe 5 extends to the inside of the dust removal pipe 1 and is connected with the input end of the annular pipe 3, the air intake pipe 5 is installed with an electromagnetic valve 6, the electromagnetic valve 6 is electrically connected to the flue gas temperature detector 2, and also comprises a rotary nozzle assembly, each group of rotary nozzle assemblies is rotatably mounted on the output end of the annular mounting seat 4 respectively;

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the rotary nozzle assembly includes a rotary joint 7, an output pipe 8, an L-shaped pipe 9, an air jet pipe 10 and a nozzle 11. The output pipe 8 is rotatably connected to the output end of the annular mounting seat 4 through the rotary joint 7. The output end of the outer wall of the output pipe 8 is provided with an L-shaped pipe 9, and the output end of the L-shaped pipe 9 is provided with an air jet pipe 10. The air jet pipe 10 is provided with two groups of nozzles 11 away from the outer wall of the L-shaped pipe 9.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, it also includes a filter box 12, a sealing plate 13, an inner screw hole 14, a filter element 15 and a bolt 16. The filter box 12 is arranged on the air inlet pipe 5, a chamber is arranged inside the filter box 12, and the filter element 15 is arranged in the chamber. The inner screw hole 14 is arranged on the top of the filter box 12, and the bolt 16 is arranged on the sealing plate 13, and the bolt 16 is adapted to the inner screw hole 14;

[0031] like Figure 2 As shown, it also includes a fixing rod 17, a groove 18, a sealing gasket 19 and an annular flat gasket 20. The top of the sealing plate 13 is provided with a groove 18, and the fixing rod 17 is fixedly installed in the groove 18. The bottom end of the sealing plate 13 is provided with a sealing gasket 19, and the outer side walls of the bolts 16 are respectively provided with annular flat gaskets 20.

[0032] In this embodiment, the filter element 15 is placed in the chamber, and then the bolt 16 is threadedly connected to the inner screw hole 14, so that the sealing plate 13 seals the filter element 15, and the filter element 15 filters impurities in the cold air. The solenoid valve 6 is normally closed. When the flue gas temperature detector 2 detects that the temperature of the flue gas at the inlet of the dust collector is greater than one hundred and twenty degrees, the solenoid valve 6 is automatically opened, so that the external cold air enters the annular tube 3 through the air intake pipe 5. The cold air entering the annular tube 3 is sprayed into the inside of the dust removal pipe 1 through multiple groups of annular mounting seats 4 and multiple groups of rotating nozzle assemblies. The solenoid valve 6 is opened, and the cold air The cold air enters the annular tube 3 through the air inlet pipe 5, and the cold air enters the annular tube 3 through the annular mounting seat 4, the output pipe 8, and the L-shaped pipe 9 into the air spray pipe 10 and is sprayed out through the nozzle 11. Since the L-shaped pipe 9 and the nozzle 11 are vertically arranged with the output pipe 8, when the cold air is sprayed out through the nozzle 11, the output pipe 8 rotates with the cooperation of the rotary joint 7, so that the multiple groups of nozzles 11 rotate, and the rotational spraying of the cold air is realized. When replacing the filter element 15, the multiple groups of bolts 16 are unscrewed, and the staff reaches into the groove 18 and holds the fixing rod 17 to move the sealing plate 13.

[0033] The dust removal pipe 1, smoke temperature detector 2, annular pipe 3, annular mounting seat 4, solenoid valve 6 and filter element 15 of a coke oven air distribution system of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A coke oven air distribution system, comprising a dust removal pipe (1), a flue gas temperature detector (2), an annular pipe (3), an annular mounting seat (4), an air intake pipe (5) and an electromagnetic valve (6), wherein the dust removal pipe (1) is provided with a flue gas temperature detector (2), the inner side wall of the dust removal pipe (1) is provided with an annular pipe (3) behind the flue gas temperature detector (2), the inner side wall of the annular pipe (3) is circumferentially connected with a plurality of annular mounting seats (4), the input end of the air intake pipe (5) extends to the inner side of the dust removal pipe (1) and is connected with the input end of the annular pipe (3), the air intake pipe (5) is provided with an electromagnetic valve (6), the electromagnetic valve (6) is electrically connected with the flue gas temperature detector (2), and the characteristics are as follows: It also includes a rotating spray head assembly, and each group of rotating spray head assemblies is rotatably mounted on the output end of the annular mounting seat (4).

2. A coke oven air distribution system as claimed in claim 1, characterized in that: The rotary spray head assembly comprises a rotary joint (7), an output pipe (8), an L-shaped pipe (9), an air spray pipe (10) and a spray head (11); the output pipe (8) is rotatably connected to the output end of the annular mounting seat (4) through the rotary joint (7); the output end of the outer wall of the output pipe (8) is provided with the L-shaped pipe (9); the output end of the L-shaped pipe (9) is provided with the air spray pipe (10); and the outer wall of the air spray pipe (10) away from the L-shaped pipe (9) is provided with two groups of spray heads (11).

3. A coke oven air distribution system as claimed in claim 1, characterized in that: The invention also comprises a filter box (12), a sealing plate (13), an inner screw hole (14), a filter element (15) and a bolt (16); the filter box (12) is arranged on the air intake pipe (5); a chamber is arranged inside the filter box (12); the filter element (15) is arranged in the chamber; the inner screw hole (14) is arranged at the top of the filter box (12); the bolt (16) is arranged on the sealing plate (13); the bolt (16) is adapted to the inner screw hole (14).

4. A coke oven air distribution system as claimed in claim 3, characterized in that: It also comprises a fixing rod (17) and a groove (18); the top end of the sealing plate (13) is provided with the groove (18), and the fixing rod (17) is fixedly installed in the groove (18).

5. A coke oven air distribution system as claimed in claim 3, characterized in that: It also comprises a sealing gasket (19), and the bottom end of the sealing plate (13) is provided with the sealing gasket (19).

6. A coke oven air distribution system as claimed in claim 3, characterized in that: It also comprises an annular flat washer (20), and the outer side walls of the bolts (16) are respectively sleeved with an annular flat washer (20).

7. A coke oven air distribution system as claimed in claim 4, characterized in that: The outer side wall of the bolt (16) is wrapped with polytetrafluoroethylene raw tape.

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