CN213984630U

CN213984630U - Carbon calcining furnace flue gas waste heat recovery device

Info

Publication number: CN213984630U
Application number: CN202023205353.5U
Authority: CN
Inventors: 都小平; 吴小永; 都林涛; 史志立; 刘志强; 刘小产
Original assignee: Qinyang Carbon Co ltd
Current assignee: Qinyang Carbon Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-17
Anticipated expiration: 2030-12-28

Abstract

The utility model belongs to the technical field of carbon processing devices, and discloses a carbon calciner flue gas waste heat recovery device, which comprises a recovery box and a heat conducting oil coil arranged in the recovery box; the device also comprises a supporting component; the recovery box is rectangular and comprises a box body and a box cover; the box cover is of an integrated structure and comprises a rectangular groove part and a connecting frame on the periphery of the groove part; the heat-conducting oil coil is an integrated snakelike coil and comprises a straight pipe part and a bent pipe part which are sequentially communicated; the supporting component comprises a plurality of supporting plates and a plurality of limiting pieces; the locating part formula structure as an organic whole, including clamp plate, two draw-in grooves. The utility model has simple structure and convenient operation; the box body and the box cover of the utility model can be disassembled, so that the dust accumulated in the box body can be conveniently cleaned; the use of the supporting component can prolong the contact time between the flue gas and the heat-conducting oil coil pipe and prolong the heat transfer time while supporting the heat-conducting oil coil pipe.

Description

Carbon calcining furnace flue gas waste heat recovery device

Technical Field

The utility model relates to a carbon element processingequipment technical field especially relates to burning furnace flue gas waste heat recovery device is forged to carbon element.

Background

The carbon calciner is a common device in the carbon production process, a large amount of calcining smoke is generated when carbon is calcined in the calciner, and the calcining smoke is directly discharged into the atmosphere after dust removal and tail gas treatment. However, the calcining flue gas discharged from the calcining furnace also contains a large amount of heat, and the direct discharge into the atmosphere causes heat loss, so a waste heat recovery device is used in the prior art to recover the heat of the calcining flue gas.

The waste heat recovery device in the prior art usually uses heat conduction oil as a heat conduction medium, so that heat of the calcined flue gas is transferred to the heat conduction oil in the waste heat recovery device, and the heat conduction oil absorbing the heat flows to a place needing the heat conduction oil to heat along a pipeline. However, the calcination flue gas contains a large amount of dust, and in the process of transferring heat to the heat transfer oil in the waste heat recovery device, part of the dust is left in the waste heat recovery device, and the long-time accumulation of the dust can influence the efficiency of transferring heat to the heat transfer oil by the calcination flue gas. And the waste heat recovery device in the prior art still has the condition of incomplete waste heat absorption of the calcining flue gas, and still causes heat loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the prior technical problem and provide a carbon calciner flue gas waste heat recovery device.

In order to achieve the purpose, the utility model is implemented according to the following technical scheme:

the carbon calcining furnace flue gas waste heat recovery device comprises a recovery box and a heat conducting oil coil arranged in the recovery box; the device also comprises a supporting component;

the recovery box is rectangular and comprises a box body and a box cover; the box body is a cuboid with an opening at the front end, a smoke inlet pipe is arranged at the lower end of the left side of the box body, and a smoke exhaust pipe is arranged at the upper end of the right side of the box body; an oil inlet pipe is arranged on the right side of the lower end face of the box body, and an oil outlet pipe is arranged on the left side of the upper end face of the box body;

the box cover is of an integrated structure and comprises a rectangular groove part and a connecting frame on the periphery of the groove part; the section of the connecting frame is L-shaped; a matching groove is formed between the connecting frame and the groove part; the matching groove is matched with the front end face of the box body, and the connecting frame is coated on the box body; the box cover is buckled on the front end surface of the box body and is fixedly connected with the box body through a screw;

the heat-conducting oil coil is an integrated snakelike coil and comprises a straight pipe part and a bent pipe part which are sequentially communicated; the head of the heat-conducting oil coil pipe is communicated with the oil inlet pipe; the tail part of the heat conducting oil coil pipe is communicated with the oil outlet pipe; the straight pipe part of the heat-conducting oil coil pipe is parallel to the left side wall of the box body; the heat-conducting oil coil is arranged in the box body through the supporting component;

the supporting component comprises a plurality of supporting plates and a plurality of limiting pieces; the number of the supporting plates is the same as that of the limiting pieces; the supporting plate is fixed in the box body and is parallel to the left side wall of the box body; the support plates are positioned between adjacent straight pipe portions; the support plate is provided with a support groove which is U-shaped, and the position of the support groove is matched with the bent pipe part;

the limiting piece is of an integrated structure and comprises a pressing plate and two clamping grooves; the two clamping grooves are distributed at the front end of the pressing plate in an up-down symmetrical manner; the width of the groove body in the clamping groove is matched with the thickness of the supporting plate; the pressure plate is inserted into the support groove, and the support plates at the upper part and the lower part of the support groove are inserted into the clamping grooves; the clamping groove is fixedly connected with the supporting plate through a bolt; the supporting plate is provided with a through hole; the bent pipe part is limited and supported on the supporting plate by the supporting groove and the pressing plate;

the front end surface of the limiting piece is flush with the front end surface of the supporting plate; the rear end face of the groove portion of the case cover is in contact with the front end face of the support plate.

Preferably, the upper end of the left side of the box body is communicated with a liquid inlet pipe, and the lower end of the right side of the box body is communicated with a liquid discharge pipe.

Preferably, the tail part of the pressure plate is provided with a semicircular notch; the notch is matched with the outer diameter of the bent pipe part.

Preferably, the smoke exhaust pipe and the smoke inlet pipe are both provided with a valve A; the oil inlet pipe and the oil outlet pipe are both provided with valves B; and valves C are respectively arranged on the liquid inlet pipe and the liquid outlet pipe.

Utility model's principle of action:

the utility model discloses an when using, the conduction oil enters into heat conduction food tray intraductal from advancing oil pipe, and after the heat transfer, the conduction oil is discharged from going out oil pipe. The calcining flue gas enters the recovery box from the flue gas inlet pipe, and is discharged from the flue gas exhaust pipe after heat exchange with the heat conducting oil coil pipe. After the waste heat recovery device is used for a period of time, liquid can be injected into the box body through the liquid inlet pipe, and dust accumulated in the box body is cleaned; the box cover can also be detached to clean the dust accumulated in the box body. The utility model discloses a through the screw connection between case lid and the box, it is convenient to dismantle, and dismantles the in-process and can pull down the case lid alone, and can not influence the fixed of inside conduction oil coil pipe. The heat conduction oil coil pipe is fixed in the box body through the supporting assembly and is installed stably.

The box cover structurally comprises a groove part and a connecting frame; the sealing performance between the box cover and the box body is enhanced, and then the rear end face of the groove portion is directly contacted with the front end face of the supporting plate, so that the supporting plate can form cavities with the box body and the box cover, and heat is fully transferred to the straight pipe portion in the cavities. The supporting plate not only supports the heat conduction oil coil pipe, but also plays a role in blocking, so that the retention time of the calcining flue gas in the box body is prolonged, and the calcining flue gas is fully contacted with the heat conduction oil coil pipe. The through holes on the supporting plate are convenient for the calcining smoke to pass through.

The locating part of the supporting component can be combined with the supporting groove on the supporting plate to clamp the heat conducting oil coil pipe. The locating part is bolted connection in the backup pad, conveniently dismantles.

The smoke exhaust pipe and the smoke inlet pipe are both provided with a valve A; the oil inlet pipe and the oil outlet pipe are both provided with valves B; and valves C are respectively arranged on the liquid inlet pipe and the liquid outlet pipe. The valve is convenient to install, adjust the flow and control.

The utility model has the advantages that:

the utility model has simple structure and convenient operation; the box body and the box cover of the utility model can be disassembled, so that the dust accumulated in the box body can be conveniently cleaned; the use of the supporting component can prolong the contact time between the flue gas and the heat-conducting oil coil pipe and prolong the heat transfer time while supporting the heat-conducting oil coil pipe.

Drawings

FIG. 1 is a schematic structural view (without a case cover) of the present invention;

FIG. 2 is a schematic structural view of the case body of FIG. 1 after a case cover is mounted thereon;

FIG. 3 is a cross-sectional view taken along line E-E of FIG. 2;

FIG. 4 is a front view of the limiter of FIG. 1;

fig. 5 is a front view of the stopper of fig. 3.

In the figure: 1. a heat conducting oil coil; 2. a box body; 3. a flue gas inlet pipe; 4. a flue gas calandria; 5. an oil inlet pipe; 6. an oil outlet pipe; 7. a liquid inlet pipe; 8. a liquid discharge pipe; 9. a groove part; 10. a connecting frame; 11. a mating groove; 12. a screw; 13. a straight tube portion; 14. a bent pipe portion; 15. a support plate; 16. a limiting member; 17. a support groove; 18. pressing a plate; 19. a card slot; 20. a through hole; 21. a notch; 22. a valve A; 23. a valve B; 24. and a valve C.

Detailed Description

The invention will be further described with reference to the drawings and specific embodiments, illustrative embodiments and description of which are provided herein to explain the invention, but not as a limitation thereof.

As shown in fig. 1 to 5, the carbon calciner flue gas waste heat recovery device comprises a recovery box and a heat conducting oil coil 1 installed in the recovery box; a support assembly is also included.

The recovery box is rectangular and comprises a box body 2 and a box cover; the box body 2 is a cuboid with an opening at the front end, a flue gas inlet pipe 3 is arranged at the lower end of the left side of the box body 2, and a flue gas exhaust pipe 4 is arranged at the upper end of the right side of the box body 2; an oil inlet pipe 5 is arranged on the right side of the lower end face of the box body 2, and an oil outlet pipe 6 is arranged on the left side of the upper end face of the box body 2; the upper end of the left side of the box body 2 is communicated with a liquid inlet pipe 7, and the lower end of the right side is communicated with a liquid discharge pipe 8.

The box cover is of an integrated structure and comprises a rectangular groove part 9 and a connecting frame 10 at the periphery of the groove part 9; the section of the connecting frame 10 is L-shaped; a matching groove 11 is formed between the connecting frame 10 and the groove part 9; the matching groove 11 is matched with the front end face of the box body 2, and the connecting frame 10 is coated on the box body 2; the box cover is buckled on the front end surface of the box body 2 and is fixedly connected with the box body 2 through a screw 12.

The heat-conducting oil coil 1 is an integrated snakelike coil and comprises eleven straight pipe parts and ten bent pipe parts which are sequentially communicated, wherein the number of the straight pipe parts is 13, and the number of the bent pipe parts is 14; the head of the heat conducting oil coil pipe 1 is communicated with an oil inlet pipe 5; the tail part of the heat conducting oil coil pipe 1 is communicated with an oil outlet pipe 6; the straight pipe part 13 of the heat conducting oil coil pipe 1 is parallel to the left side wall of the box body 2; the heat conduction oil coil pipe 1 is installed in the box body 2 through a supporting component.

The supporting component comprises ten supporting plates 15 and ten limiting pieces 16; the supporting plate 15 is fixed in the box body 2, and the supporting plate 15 is parallel to the left side wall of the box body 2; the support plates 15 are located between the adjacent straight tube portions 13; the support plate 15 is provided with a support groove 17, the support groove 17 is U-shaped, and the position of the support groove 17 is matched with the bent pipe part 14.

The limiting piece 16 is of an integrated structure and comprises a pressing plate 18 and two clamping grooves 19; the two clamping grooves 19 are distributed at the front end of the pressing plate 18 in an up-down symmetrical manner; the width of the groove body in the clamping groove 19 is matched with the thickness of the supporting plate 15; the pressing plate 18 is inserted into the supporting groove 17, and the supporting plates at the upper part and the lower part of the supporting groove 17 are inserted into the clamping groove 19; the clamping groove 19 is fixedly connected with the supporting plate 15 through a bolt; the support plate 15 has a through hole 20. The tail part of the pressure plate 18 is provided with a semicircular gap 21; the notch 21 matches the outer diameter of the elbow 14. The bent pipe part is limited and supported on the supporting plate by the supporting groove and the pressing plate.

The front end surface of the limiting piece 16 is flush with the front end surface of the supporting plate 15; the rear end surface of the groove portion 9 of the case cover contacts the front end surface of the support plate 15.

The flue gas exhaust pipe 4 and the flue gas inlet pipe 3 are both provided with a valve A22; the oil inlet pipe 5 and the oil outlet pipe 6 are both provided with a valve B23; the liquid inlet pipe 7 and the liquid outlet pipe 8 are both provided with a valve C24.

The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.

Claims

1. The carbon calcining furnace flue gas waste heat recovery device comprises a recovery box and a heat conducting oil coil arranged in the recovery box; the method is characterized in that: the device also comprises a supporting component;

2. The carbon calciner flue gas waste heat recovery device according to claim 1, characterized in that: the upper end of the left side of the box body is communicated with a liquid inlet pipe, and the lower end of the right side of the box body is communicated with a liquid discharge pipe.

3. The carbon calciner flue gas waste heat recovery device according to claim 2, characterized in that: the tail part of the pressure plate is provided with a semicircular gap; the notch is matched with the outer diameter of the bent pipe part.

4. The carbon calciner flue gas waste heat recovery device according to claim 3, characterized in that: the smoke exhaust pipe and the smoke inlet pipe are both provided with a valve A; the oil inlet pipe and the oil outlet pipe are both provided with valves B; and valves C are respectively arranged on the liquid inlet pipe and the liquid outlet pipe.