CN219244293U - Waste heat recovery device of heat accumulating type stepping furnace - Google Patents

Waste heat recovery device of heat accumulating type stepping furnace Download PDF

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Publication number
CN219244293U
CN219244293U CN202223463859.5U CN202223463859U CN219244293U CN 219244293 U CN219244293 U CN 219244293U CN 202223463859 U CN202223463859 U CN 202223463859U CN 219244293 U CN219244293 U CN 219244293U
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pipe
hot air
air pipe
valve
smoke
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张威
张保雷
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Shandong Xinjingxin Metal Products Co ltd
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Shandong Xinjingxin Metal Products Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
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Abstract

The utility model discloses a heat accumulating type step furnace waste heat recovery device, which comprises a heat accumulating chamber: the waste heat recovery device of the regenerative furnace is characterized in that a hot air pipe is arranged in the regenerative chamber, the upper end of the hot air pipe is fixedly connected with a connecting pipe, one side of the connecting pipe is provided with a first valve, the upper end of the connecting pipe is connected with a box body, the first valve and the second valve are opened by closing a third valve, a booster pump is started, the pressure is applied to the interior of the box body through the booster pipe, so that smoke removing agent can enter the hot air pipe to wash and remove dust on the inner wall of the hot air pipe, the heating of the interior of the regenerative chamber is prevented from being influenced by excessive smoke dust, and the smoke removing agent can be added into the interior of the box body from a liquid inlet pipe through rotating and removing a cover body so as to clean dust on the inner wall of the hot air pipe; through rotating the demolishment screw, the support ring loses the constraint, and the support ring is conveniently moved upwards to drive the sealing gasket and the filter screen to demolish so as to clean and maintain the filter screen, a large amount of smoke and dust can be filtered in the design of the filter screen, and the smoke and dust emission pollution is reduced.

Description

Waste heat recovery device of heat accumulating type stepping furnace
Technical Field
The utility model relates to the technical field of waste heat recovery devices, in particular to a heat accumulating type stepping furnace waste heat recovery device.
Background
The regenerative heating furnace is a combination of a high-efficiency regenerative heat exchanger and a conventional heating furnace, and mainly comprises a heating furnace body, a regenerative chamber, a reversing system, and a fuel, air supply and smoke exhaust system. The heat accumulating chamber is one main body for recovering waste heat of heat accumulating furnace, and is one part of the flow passage of fume and air. In heating furnaces, regenerators are always used in pairs, one furnace may be used in a pair, or several pairs, or even tens of pairs. On some large heating furnaces in China, the heating furnace is used for forty pairs at most. The heat accumulating type waste heat recovering device has the advantages that the furnace temperature is more uniform, the heating quality is greatly improved due to uniform furnace temperature distribution, and the product qualification rate is greatly improved. The fuel selection range is larger, and the fuel is suitable for various fuels such as light oil, heavy oil, natural gas, liquefied petroleum gas and the like, especially has good preheating combustion supporting effect on blast furnace gas and producer gas with low heat value, and expands the application range of the fuel.
At present, the flue gas that current produces through with the step-by-step stove is led into first circulation case in, and in leading-in second circulation case through the air duct, four circulation cases and a plurality of air duct's setting has improved the inside dwell time of flue gas at the organism, but the smoke and dust stagnates and reduces the heat conduction effect at the air duct inner wall.
The heat accumulating type stepping furnace waste heat recovery device disclosed in the authorized publication number CN215491113U comprises a machine body, a heat exchange mechanism and a bottom frame, wherein the heat exchange mechanism is arranged in the machine body, and the bottom frame is fixedly arranged at the bottom of the machine body. The heat exchange mechanism comprises a first circulation box and a mounting plate, wherein the first circulation box is connected with an air duct, the inside of the mounting plate is provided with a mounting hole, the inside of the mounting hole is fixedly provided with the air duct, and the other end of the air duct is connected with a second circulation box.
According to the scheme disclosed in the prior patent document, after the smoke dust enters the inner wall of the hot air pipe, the smoke dust is easy to cause thicker dust after long-time use, and the heat conduction effect is affected. Accordingly, improvements in the art are needed.
Disclosure of Invention
The utility model aims to provide a heat accumulating type stepping furnace waste heat recovery device, which is used for solving the problem that after the inner wall of a hot air pipe is used for a long time, the heat conduction effect is affected by thicker dust.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the heat accumulating type step furnace waste heat recovery device comprises a heat accumulating chamber: the inside of regenerator has the hot air pipe, the upper end fixedly connected with connecting pipe of hot air pipe, first valve is installed to one side of connecting pipe, the upper end of connecting pipe is connected with the box, the upper end fixedly connected with feed liquor pipe of box, the upper end outside of feed liquor pipe has the lid through threaded connection, the upper end fixedly connected with pressurization pipe of box, the one end fixedly connected with force (forcing) pump of pressurization pipe, the upper end fixedly welded with inlet tube of regenerator, the lower extreme fixedly connected with outlet pipe of regenerator, the lower extreme fixedly connected with fluid-discharge tube of hot air pipe, the second valve is installed to one side of fluid-discharge tube, the filter screen has been cup jointed respectively to the lower extreme of hot air pipe and the inside upper end, the upper end of filter screen is connected with sealed pad, sealed upper end fastening of pad is glued and is glued to have the holding ring, the inside of holding ring is through threaded connection screw, the lower extreme and the inside of hot air pipe are installed the third valve respectively.
Preferably, the upper end of the regenerator is provided with a booster pump, the water inlet pipe is connected with a water tap, the first valve and the second valve are opened by closing the third valve, the booster pump is started, the pressure is applied to the inside of the box body through the booster pipe, so that the smoke remover can enter the hot air pipe to wash and remove dust on the inner wall of the hot air pipe, and the heating of the inside of the regenerator is prevented from being influenced by excessive smoke.
Preferably, the inside of box adds the dust remover, the surface of lid is provided with bar anti-skidding line, demolishs the lid through rotating, can follow the feed liquor pipe and to the inside smoke suppressant that adds of box to clear up the dust of hot air pipe inner wall.
Preferably, the lower extreme of screw passes through threaded connection hot air pipe, the lower extreme of hot air pipe is connected with step furnace exhaust pipe, the upper end of hot air pipe is connected with smoke and dust emission processing apparatus, demolishs the screw through rotating, and the support ring loses the constraint, and the convenience upwards removes the support ring and drives sealed pad and filter screen and demolish to wash maintenance to the filter screen.
Preferably, the lower end face of the sealing gasket compresses the hot air pipe, the water outlet pipe is connected with a liquid discharge pipeline, and the design of the filter screen can filter a large amount of smoke dust and reduce smoke dust emission pollution.
Compared with the prior art, the utility model has the beneficial effects that:
1. the upper end of the regenerator is provided with the booster pump, the water inlet pipe is connected with the faucet, the first valve and the second valve are opened by closing the third valve, the booster pump is started, the pressure is applied to the inside of the box body through the booster pipe, so that the smoke removing agent can enter the hot air pipe to scour and remove dust on the inner wall of the hot air pipe, and the heating of the inside of the regenerator is prevented from being influenced by the excessive thickness of smoke dust.
2. The dust remover is added in the box body, the strip-shaped anti-slip patterns are arranged on the outer surface of the cover body, and the cover body is removed through rotation, so that the smoke remover can be added in the box body from the liquid inlet pipe, and dust on the inner wall of the hot air pipe can be cleaned.
3. The lower end of the screw is connected with the hot air pipe through threads, the lower end of the hot air pipe is connected with the fume exhaust pipeline of the stepping furnace, the upper end of the hot air pipe is connected with the fume emission treatment device, the support ring loses constraint through rotating the dismantling screw, and the support ring is conveniently moved upwards to drive the sealing gasket and the filter screen to be dismantled, so that the filter screen is cleaned, maintained and maintained.
4. The lower end surface of the sealing gasket compresses the hot air pipe, the water outlet pipe is connected with the liquid discharge pipeline, and the filter screen can filter a large amount of smoke dust and reduce smoke dust emission pollution.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged cross-sectional view of the utility model at A;
fig. 3 is an enlarged cross-sectional view of the utility model at B.
In the figure: 1 a regenerator, 11 a hot air pipe, 12 a connecting pipe, 13 a first valve, 14 a box body, 15 a liquid inlet pipe, 16 a cover body, 17 a pressurizing pipe, 18 a pressurizing pump, 19 a water inlet pipe, 110 a water outlet pipe, 111 a liquid outlet pipe, 112 a second valve, 2 a filter screen, 21 a sealing gasket, 22 a supporting ring, 23 screws and 24 a third valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-3, the heat recovery device of the regenerative stepping furnace in the drawings comprises a regenerator 1: the inside of regenerator 1 is equipped with hot air pipe 11, the upper end fixedly connected with connecting pipe 12 of hot air pipe 11, first valve 13 is installed to one side of connecting pipe 12, the upper end of connecting pipe 12 is connected with box 14, the upper end fixedly connected with feed liquor pipe 15 of box 14, the upper end outside of feed liquor pipe 15 has lid 16 through threaded connection, the upper end fixedly connected with pressurization pipe 17 of box 14, the one end fixedly connected with force (forcing) pump 18 of pressurization pipe 17, the model of force (forcing) pump 18 is ZK0040, belong to prior art, the upper end fixedly welded with inlet tube 19 of regenerator 1, the lower extreme fixedly connected with outlet pipe 110 of regenerator 1, the lower extreme fixedly connected with fluid-discharge tube 111 of hot air pipe 11, second valve 112 is installed to one side of fluid-discharge tube 111, the lower extreme and the upper end inside of hot air pipe 11 cup joint filter screen 2 respectively, the upper end of filter screen 2 is connected with sealing washer 21, the upper end fastening of sealing washer 21 glues and has support ring 22, the inside of support ring 22 is through threaded connection screw 23, the lower extreme and the upper end inside of air pipe 11 installs the third valve 24 respectively.
For conveniently cleaning smoke dust, the pressurizing pump 18 is arranged at the upper end of the regenerator 1, the water inlet pipe 19 is connected with a water tap, the first valve 13 and the second valve 112 are opened by closing the third valve 24, the pressurizing pump 18 is started, the pressure is used for pressurizing the inside of the box 14 through the pressurizing pipe 17, so that smoke-removing agents can enter the hot air pipe 11 to wash and remove dust on the inner wall of the hot air pipe, the heating of the regenerator 1 is prevented from being influenced by the excessive thickness of smoke dust, the dedusting agents are added in the box 14, the strip-shaped anti-skid patterns are arranged on the outer surface of the cover 16, the smoke-removing agents can be added in the box 14 from the liquid inlet pipe 15 by rotating and removing the cover 16, and the dust on the inner wall of the hot air pipe 11 is cleaned.
In this embodiment, by closing the third valve 24 and opening the first valve 13 and the second valve 112, the pressurizing pump 18 is started, and the pressure is applied to the inside of the tank 14 through the pressurizing pipe 17, so that the smoke removing agent can enter the hot air pipe 11 to wash and remove dust on the inner wall of the hot air pipe, the heating of the inside of the regenerator 1 is prevented from being influenced by excessive thickness of smoke, and the smoke removing agent can be added into the tank 14 from the liquid inlet pipe 15 by rotating the dismantling cover 16, so as to clean dust on the inner wall of the hot air pipe 11.
Example 2
Referring to fig. 1-3, this embodiment further illustrates an example 1, in which a heat accumulating type stepping furnace waste heat recovery device includes a heat accumulating chamber 1: the inside of regenerator 1 is equipped with hot air pipe 11, the upper end fixedly connected with connecting pipe 12 of hot air pipe 11, first valve 13 is installed to one side of connecting pipe 12, the upper end of connecting pipe 12 is connected with box 14, the upper end fixedly connected with feed liquor pipe 15 of box 14, the upper end outside of feed liquor pipe 15 has lid 16 through threaded connection, the upper end fixedly connected with pressurization pipe 17 of box 14, the one end fixedly connected with force (forcing) pump 18 of pressurization pipe 17, the upper end fixedly welded with inlet tube 19 of regenerator 1, the lower extreme fixedly connected with outlet pipe 110 of regenerator 1, the lower extreme fixedly connected with drain pipe 111 of hot air pipe 11, one side of drain pipe 111 installs second valve 112, filter screen 2 has been cup jointed respectively to the lower extreme of hot air pipe 11 and the inside upper end, the upper end of filter screen 2 is connected with sealed 21, the upper end fastening of sealed 21 is glued and is had supporting ring 22, the inside of supporting ring 22 has screw 23 through threaded connection, the lower extreme and the inside of hot air pipe 11 installs third valve 24 respectively.
In order to reduce smoke emission, the lower extreme of screw 23 passes through threaded connection hot air pipe 11, and the lower extreme of hot air pipe 11 is connected with step furnace exhaust pipe, and the upper end of hot air pipe 11 is connected with smoke emission processing apparatus, demolish screw 23 through the rotation, and support ring 22 loses the constraint, and convenient upward movement support ring 22 drives sealed 21 and filter screen 2 and demolishs to wash maintenance to filter screen 2, the lower terminal surface of sealed 21 compresses tightly hot air pipe 11, and outlet pipe 110 is connected with the fluid-discharge tube, and the design of filter screen 2 can filter a large amount of smoke and dust, reduces smoke emission pollution.
In this embodiment, through rotating demolishs screw 23, support ring 22 loses the constraint, and convenient upward movement support ring 22 drives sealed 21 and filter screen 2 and demolishs to wash maintenance to filter screen 2, the design of filter screen 2 can filter a large amount of smoke and dust, reduces smoke and dust emission pollution.
According to the heat accumulating type stepping furnace waste heat recovery device, the generated smoke dust of the stepping furnace is led into the hot air pipe 11, so that water in the heat accumulating chamber 1 can be heated, waste heat recovery utilization of the stepping furnace is improved, the third valve 24 is closed, the first valve 13 and the second valve 112 are opened, the pressurizing pump 18 is started, the pressure is applied to the inside of the box 14 through the pressurizing pipe 17, so that smoke removing agent can enter the hot air pipe 11 to wash and remove dust on the inner wall of the hot air pipe, the heating of the inside of the heat accumulating chamber 1 is prevented from being influenced by excessive smoke dust, the smoke removing agent can be added into the box 14 from the liquid inlet pipe 15 through rotating the dismantling cover 16, and dust on the inner wall of the hot air pipe 11 is cleaned; through rotating the dismantling screw 23, the supporting ring 22 loses the constraint, and the supporting ring 22 is conveniently moved upwards to drive the sealing gasket 21 and the filter screen 2 to be dismantled, so that the filter screen 2 is cleaned and maintained, a large amount of smoke dust can be filtered by the design of the filter screen 2, and the smoke dust emission pollution is reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The waste heat recovery device of the heat accumulating type stepping furnace is characterized by comprising a heat accumulating chamber (1): the inside of the regenerator (1) is provided with a hot air pipe (11), the upper end of the hot air pipe (11) is fixedly connected with a connecting pipe (12), one side of the connecting pipe (12) is provided with a first valve (13), the upper end of the connecting pipe (12) is connected with a box body (14), the upper end of the box body (14) is fixedly connected with a liquid inlet pipe (15), the outer side of the upper end of the liquid inlet pipe (15) is provided with a cover body (16) through threaded connection, the upper end of the box body (14) is fixedly connected with a pressurizing pipe (17), one end of the pressurizing pipe (17) is fixedly connected with a pressurizing pump (18), the upper end of the regenerator (1) is fixedly welded with a water inlet pipe (19), the lower end of the regenerator (1) is fixedly connected with a water outlet pipe (110), the lower end of the hot air pipe (11) is fixedly connected with a liquid outlet pipe (111), one side of the liquid outlet pipe (111) is provided with a second valve (112), the lower end and the upper end of the hot air pipe (15) are respectively sleeved with a filter screen (2), the upper end of the filter screen (21) is connected with a sealing ring (22) through a sealing ring (22), and a third valve (24) is respectively arranged in the lower end and the upper end of the hot air pipe (11).
2. The heat accumulating type stepping furnace waste heat recovery device according to claim 1, wherein: the upper end of the regenerator (1) is provided with a booster pump (18), and the water inlet pipe (19) is connected with a water tap.
3. The heat accumulating type stepping furnace waste heat recovery device according to claim 1, wherein: the inside of box (14) is added and is had dust remover, the surface of lid (16) is provided with bar anti-skidding line.
4. The heat accumulating type stepping furnace waste heat recovery device according to claim 1, wherein: the lower end of the screw (23) is connected with a hot air pipe (11) through threads, the lower end of the hot air pipe (11) is connected with a stepping furnace smoke exhaust pipeline, and the upper end of the hot air pipe (11) is connected with a smoke dust emission treatment device.
5. The heat accumulating type stepping furnace waste heat recovery device according to claim 1, wherein: the lower end face of the sealing gasket (21) is tightly pressed against the hot air pipe (11), and the water outlet pipe (110) is connected with a liquid discharge pipeline.
CN202223463859.5U 2022-12-25 2022-12-25 Waste heat recovery device of heat accumulating type stepping furnace Active CN219244293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223463859.5U CN219244293U (en) 2022-12-25 2022-12-25 Waste heat recovery device of heat accumulating type stepping furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223463859.5U CN219244293U (en) 2022-12-25 2022-12-25 Waste heat recovery device of heat accumulating type stepping furnace

Publications (1)

Publication Number Publication Date
CN219244293U true CN219244293U (en) 2023-06-23

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ID=86848702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223463859.5U Active CN219244293U (en) 2022-12-25 2022-12-25 Waste heat recovery device of heat accumulating type stepping furnace

Country Status (1)

Country Link
CN (1) CN219244293U (en)

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