CN218672238U - Waste heat recovery mechanism of graphitizing furnace - Google Patents

Abstract

The utility model discloses a graphitizing furnace waste heat recovery mechanism, its structure includes graphitizing furnace and power cord, the bottom welding of graphitizing furnace has the base, the welding of graphitizing furnace top exhaust port has a tobacco pipe, has set up the heat transfer heat preservation device in graphitizing furnace front end, is favorable to retrieving the waste heat inside the high temperature dusty flue gas like this, prevent the flue gas from discharging directly and causing the huge waste of the energy, improve the utilization coefficient of the energy effectively, and can preserve heat to the heat exchange process and reduce the thermal loss, have prevented the scalding board and avoid the staff from touching the high temperature area by mistake and scalding; the filtering and cleaning device is arranged on the right side of the graphitizing furnace, so that the dust in the high-temperature dust-containing flue gas is filtered and collected, the scaling rate in the heat exchanger is reduced by primary screening, the heat exchange efficiency of the heat exchanger is effectively ensured to be in a higher level for a long time, the dust is effectively prevented from polluting the environment, and the comfort of the working environment of personnel and the safety in the working process are effectively improved.

Description

Waste heat recovery mechanism of graphitizing furnace

Technical Field

The utility model relates to a graphite production technical field, concretely relates to graphitizing furnace waste heat recovery mechanism.

Background

The graphitizing furnace is mainly used for sintering and graphitizing carbon materials, graphitizing PI films, graphitizing heat conducting materials, sintering carbon fiber ropes, sintering and graphitizing carbon fiber filaments, purifying graphite powder and processing other materials which can be graphitized in a carbon environment at high temperature, the service temperature of the graphitizing furnace reaches 3000 ℃, the production efficiency is high, energy and electricity are saved, the online temperature measuring and controlling system is arranged, the temperature in the furnace can be monitored in real time, and automatic adjustment can be carried out.

Prior art application No. CN202122203620.3 discloses a graphitization furnace waste heat utilization device, including two at least graphitization furnaces, the intake pipe, the outlet duct, graphitization furnace top intercommunication has the aiutage, aiutage top sealing connection has the casing, the casing symmetry is equipped with intake pipe and outlet duct, the one end of intake pipe and outlet duct all is linked together with graphitization furnace, the intake pipe other end is equipped with the fan, the outlet duct other end is equipped with the concentrated mechanism that is used for concentrating steam and sees off, intake pipe and outlet duct shaft all communicate the valve body subassembly that is used for opening and close the passageway.

In the high temperature graphitization in-process of producing graphite electrode, can produce a large amount of high temperature flue gas and a large amount of dust, and high temperature dirty flue gas waste heat is high, and the retrieval value is big, directly discharge can produce huge energy waste, and because high temperature dirty flue gas inside contains a large amount of dust, directly discharge and cause serious pollution to the environment easily, and can reduce personnel operational environment's travelling comfort, inhale internal can cause serious influence to its health by the staff, and the inside dust of high temperature dirty flue gas can produce the scale deposit in the heat exchanger, and then lead to heat exchange efficiency to reduce.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome prior art not enough, a graphitizing furnace waste heat recovery mechanism is proposed at present, the high temperature graphitization in-process at production graphite electrode has been solved, can produce a large amount of high temperature flue gas and a large amount of dust, and high temperature dusty flue gas waste heat is of high grade, the recovery value is big, directly discharge can produce huge energy waste, and because the high temperature dusty flue gas is inside to contain a large amount of dust, directly discharge and cause serious pollution to the environment easily, and can reduce personnel operational environment's travelling comfort, inhale internal can cause serious influence to its health by the staff, and the inside dust of high temperature dusty flue gas can produce the scale deposit in the heat exchanger, and then lead to the problem that heat exchange efficiency reduces.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a graphitizing furnace waste heat recovery mechanism, including graphitizing furnace, base, play tobacco pipe, nitrogen gas jar and power cord, heat transfer heat preservation device locates graphitizing furnace front end, filter cleaning device locates the graphitizing furnace right side, heat transfer heat preservation device is including preventing scalding board, heat exchanger, heat preservation, cold pneumatic valve, hot pneumatic valve, temperature sensor and heat transfer exit tube, graphitizing furnace front end face bolt fastening has the board of preventing scalding, graphitizing furnace front end face middle-end bolt installs the heat exchanger, the heat exchanger lateral surface all glues glutinous and installs the heat preservation, the bottom pipe mounting of nitrogen gas jar lateral surface right-hand member has cold pneumatic valve, cold pneumatic valve right side is through pipeline and heat exchanger left side pipe connection, heat exchanger right side top and hot pneumatic valve left side pipe connection, the heat exchanger detects the head bolted connection with the temperature sensor top, heat exchanger right side bottom trompil pipe mounting has the heat transfer exit tube.

Further, the welding of graphitization stove bottom has the base, the welding of graphitization stove top exhaust port has a tobacco pipe, the graphitization stove left side is provided with the nitrogen gas jar, graphitization stove left side and power cord fixed connection.

Further, filter cleaning device includes sieve case, prescreening dust collection box, leads tobacco pipe, screen cloth, rose box, electrostatic precipitator net, cleaning motor, the clean pole of L type, cleaning brush, main dust collection box and strain the trachea pipe, graphitizing furnace top installation is fixed with the sieve case just, sieve incasement bottom slides and is provided with the prescreening dust collection box just, sieve case preceding terminal surface upper end trompil pipe connection has leads the tobacco pipe, go out the tobacco pipe and sieve case back trompil pipe connection just.

Further, lead tobacco pipe and heat exchanger lateral surface top through-hole pipe connection, the internal surface of prescreening case is bolted connection all around with the screen cloth, graphitizing furnace right side is equipped with the rose box, the right side is through square frame and electrostatic precipitator net right side bolted connection in the rose box.

Further, rose box right side fixed mounting has clean motor, clean motor left side rotation axis and the coaxial rotation in L type clean pole right side, L type clean pole right side bolt fastening has the cleaning brush.

Furthermore, the bottom in the filter box is provided with a main dust collecting box in a sliding manner, an air filtering discharge pipe is arranged on the perforated pipeline on the right side of the filter box, and the through hole at the front end of the left side of the filter box is connected with a heat exchange outlet pipe pipeline.

Furthermore, the bristles on the right side of the cleaning brush are in sliding connection with the left side of the electrostatic dust removal net, and the maximum elastic coefficient of the bristles on the right side of the cleaning brush to the left side of the electrostatic dust removal net is six centimeters.

Furthermore, a sealing ring is fixedly arranged at the joint of the through hole at the front end of the left side of the filter box and the pipeline of the heat exchange outlet pipe.

Furthermore, a ferrule is adhesively mounted on the handle at the right side of the main dust collection box, and anti-skid grains are arranged on the outer side surface of the ferrule on the handle at the right side of the main dust collection box.

Furthermore, the L-shaped cleaning rod is made of stainless steel.

Furthermore, the filter box is made of stainless steel.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) A graphitizing furnace waste heat recovery mechanism, through having set up heat transfer heat preservation device in graphitizing furnace front end, retrieve to the flue gas waste heat through preventing scalding board, heat exchanger, heat preservation, cold pneumatic valve and hot pneumatic valve, be favorable to retrieving the inside waste heat of high temperature dusty flue gas like this, prevent that the flue gas from directly discharging and causing the huge waste of the energy, effectively improve the utilization ratio of the energy to can keep warm to the heat exchange process and reduce thermal loss, be equipped with and prevent scalding the board and avoid the staff mistake to touch high temperature area and scald.

2) A graphitizing furnace waste heat recovery mechanism, through having set up filtration cleaning device in graphitizing furnace right side, through prescreening the dust collection box, the screen cloth, the rose box, the electrostatic precipitator net, cleaning motor, cleaning brush and main dust collection box carry out dual filtration to the dust in the flue gas, be favorable to filtering the collection to the inside dust of high temperature dusty flue gas like this, carry out prescreening and reduce the inside scale deposit rate of heat exchanger, the heat exchange efficiency of effectively having ensured the heat exchanger is in higher level for a long time, effectively avoid the dust to cause the pollution to the environment, effectively improve personnel operational environment's travelling comfort and the security in the working process.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the scald-proof plate and the primary screen box of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the heat exchanger and the prescreening box of the present invention;

FIG. 4 is a schematic view of the internal structure of the prescreening box of the present invention;

fig. 5 is a schematic view of the internal structure of the filtering box of the present invention.

In the figure: the device comprises a graphitization furnace-1, a base-2, a smoke outlet pipe-3, a nitrogen tank-4, a heat exchange and heat preservation device-5, a filtering and cleaning device-6, a power line-7, an anti-scalding plate-51, a heat exchanger-52, a heat preservation layer-53, a cold air valve-54, a hot air valve-55, a temperature sensor-56, a heat exchange outlet pipe-57, a prescreening box-61, a prescreening dust collection box-62, a smoke guide pipe-63, a screen-64, a filter box-65, an electrostatic dust collection net-66, a cleaning motor-67, an L-shaped cleaning rod-68, a cleaning brush-69, a main dust collection box-610 and a filtering gas discharge pipe-611.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment:

referring to fig. 1, the present invention provides a waste heat recovery mechanism for a graphitization furnace: including graphitizing furnace 1, base 2, play tobacco pipe 3, nitrogen gas jar 4 and power cord 7, the welding of 1 bottom of graphitizing furnace has base 2, and the welding of 1 top exhaust port of graphitizing furnace has a tobacco pipe 3, and 1 left side of graphitizing furnace is provided with nitrogen gas jar 4, 1 left side and power cord 7 fixed connection of graphitizing furnace.

Please refer to fig. 1, fig. 2 and fig. 3, the utility model provides a graphitizing furnace waste heat recovery mechanism, heat transfer heat preservation device 5 locates 1 front end of graphitizing furnace, filter cleaning device 6 and locate 1 right side of graphitizing furnace, heat transfer heat preservation device 5 includes scald preventing plate 51, heat exchanger 52, heat preservation 53, air conditioning valve 54, hot gas valve 55, temperature sensor 56 and heat transfer exit tube 57, graphitizing furnace 1 front end face bolt fastening has scald preventing plate 51, scald preventing plate 51 prevents that the staff from touching the high temperature zone by mistake and being scalded, graphitizing furnace 1 front end face middle end bolt installs heat exchanger 52, heat exchanger 52 lateral surface all glues glutinous and installs heat preservation 53, the bottom pipe-line installation of nitrogen gas tank 4 lateral surface right-hand member has cold gas valve 54, air conditioning valve 54 right side passes through pipeline and heat exchanger 52 left side pipe connection, heat exchanger 52 right side top and hot gas valve 55 left side pipe connection, heat exchanger 52 and temperature sensor 56 top detection head bolted connection, temperature sensor 56 monitors the inside temperature of heat exchanger 52, and send temperature detection data to control terminal, heat transfer terminal right side 52 bottom pipe installation has heat transfer exit tube 57, high temperature dust through the convenient flue gas dust through the trompil of heat transfer exit tube 57.

Referring to fig. 1, fig. 3, fig. 4 and fig. 5, the present invention provides a waste heat recovery mechanism for a graphitization furnace, wherein the filtering and cleaning device 6 comprises a primary screen box 61, a primary screen dust collecting box 62, a smoke guide tube 63, a screen 64, a filter box 65, an electrostatic dust collection net 66, a cleaning motor 67, an L-shaped cleaning rod 68, a cleaning brush 69, a main dust collecting box 610 and a filter exhaust tube 611, the top of the graphitization furnace 1 is fixed with the primary screen box 61, the primary screen box 61 provides a space for coarse screening of high temperature dust-containing smoke, the primary screen dust collecting box 62 is slidably arranged at the bottom of the primary screen box 61, the smoke guide tube 63 is connected to the upper end of the front end face of the primary screen box 61, the smoke outlet tube 3 is connected to the back of the primary screen box 61, the smoke guide tube 63 is connected to the top through hole tube of the outer side face of the heat exchanger 52, the inner side face of the primary screen box 61 is connected to the periphery of the screen 64 by bolts, the screen 64 is used for rough filtering the high-temperature dust-containing flue gas, the right side of the graphitization furnace 1 is provided with the filter box 65, the right side in the filter box 65 is connected with the right side of the electrostatic dust collection net 66 through a square frame through a bolt, the right side of the filter box 65 is fixedly provided with the cleaning motor 67, the left rotating shaft of the cleaning motor 67 and the right side of the L-shaped cleaning rod 68 rotate coaxially, the rotating shaft of the cleaning motor 67 is used for driving the L-shaped cleaning rod 68 to rotate, the right side of the L-shaped cleaning rod 68 is fixedly provided with the cleaning brush 69, the bottom in the filter box 65 is provided with the main dust collection box 610 in a sliding mode, the right opening pipeline of the filter box 65 is provided with the filter air exhaust pipe 611, the through hole at the left side of the filter box 65 is connected with the heat exchange pipe 57, the right side brush of the cleaning brush 69 is connected with the left side of the electrostatic dust collection net 66 in a sliding mode, the maximum elastic coefficient of the right side brush 69 on the left side of the electrostatic dust collection net 66 is six centimeters, and the left side of the electrostatic dust collection net 66 is used for enhancing the cleaning effect of the cleaning brush 69 on the electrostatic dust collection net 66, the sealing washer is fixed in the pipe connection department installation of rose box 65 left side front end through-hole and heat transfer exit tube 57, effectively increase the leakproofness of rose box 65 left side front end through-hole and heat transfer exit tube 57, prevent to produce high-temperature gas and leak and lead to the staff to be scalded, main dust collection box 610 right side is sticky on hand and is installed the lasso, and main dust collection box 610 right side is the lasso lateral surface of being on hand all is equipped with anti-skidding line, be favorable to increasing the frictional force between palm and the handle like this, avoid staff's hand to slide to drop main dust collection box 610 and lead to the dust to fly upward, the interference processing work.

The second embodiment:

the utility model provides a graphitizing furnace waste heat recovery mechanism, power cord 7 are connected with electrostatic precipitator net 66 and clean motor 67 electricity respectively, help providing sufficient power support for the operation of electrostatic precipitator net 66 and clean motor 67 like this, and the clean pole 68 of L type runs through electrostatic precipitator net 66 and is connected with the rotation of electrostatic precipitator net 66 medial surface, runs through the clean pole 68 of rotatory L type and conveniently carries out the cleanness of great area to electrostatic precipitator net 66 left side.

The utility model provides a waste heat recovery mechanism of a graphitization furnace through improvement, and the working principle is as follows;

firstly, when the equipment is used, the device is firstly placed in a working area, and then the equipment is connected with an external power supply, so that the required electric energy can be provided for the work of the equipment;

secondly, graphitizing the baked electrode in the graphitizing furnace 1, generating a large amount of high-temperature dust-containing flue gas in the processing process of the graphitizing furnace 1, then discharging the high-temperature dust-containing flue gas in the graphitizing furnace 1, and collecting the processed graphitized electrode, because the high-temperature dust-containing flue gas contains a large amount of dust, the environment is easily and seriously polluted by direct discharge, and the comfort of working environment of personnel can be reduced, the body of the personnel is seriously influenced by suction of the personnel, and the dust in the high-temperature dust-containing flue gas can be scaled in the heat exchanger 52, so that the heat exchange efficiency is reduced, when the high-temperature dust-containing flue gas in the graphitizing furnace 1 is discharged, the high-temperature dust-containing flue gas firstly enters the primary screening dust collecting box 62 along the smoke outlet pipe 3, the high-temperature dust-containing flue gas in the primary screening dust collecting box 62 can pass through the first filtering of the screen 64, the larger dust particles in the high-temperature dust-containing flue gas are filtered out, and can fall into the primary screening dust collecting box 62 from the bottom of the screen 64 under the influence of gravity, thus being beneficial to the heat exchange efficiency of the heat exchanger 52 being reduced for long-term;

thirdly, the dust-containing flue gas after heat exchange and temperature reduction enters the filter box 65 through the heat exchange outlet pipe 57, a worker controls and starts the electrostatic dust collection net 66 and the cleaning motor 67 through the control terminal, the electrostatic dust collection net 66 generates an electrostatic field at the periphery after being electrified, the electrostatic field is utilized to ionize gas, so that dust is charged, the dust-containing flue gas in the electrostatic field is ionized into positive ions and electrons, the electrons rush to the positive electrode, so that the dust is charged negatively, the dust moves to the positive electrode under the action of the electrostatic field, the charged electrons are released when the dust is in contact with the positive electrode, the dust is adsorbed on the electrostatic dust collection net 66, when the worker cuts off the power to the electrostatic dust collection net 66, the dust on the electrostatic dust collection net 66 loses adsorption force, the dust falls into the main dust collection box 610 along the left side of the electrostatic dust collection net 66, the dust content in the double-filtered flue gas falls to a safe level, the flue gas is discharged through the filter 611, and the dust is attached to the electrostatic dust collection net 66 due to the effect, the dust collection box 62, the dust collection box is removed from the rotary dust collection box, the rotary dust collection box 69, and the rotary dust collection box 62, the rotary dust collection box is removed, the rotary dust collection box 62, and the rotary dust collection box is removed by the rotary dust collection box 62, the rotary dust collection box under the rotary dust collection box 610;

fourthly, in the high-temperature graphitization process for producing the graphite electrode, a large amount of high-temperature flue gas and a large amount of dust are generated, the waste heat grade of the high-temperature dust-containing flue gas is high, the recovery value is high, huge energy waste can be generated by directly discharging, then a worker opens the cold air valve 54, nitrogen enters the heat exchanger 52 through the cold air valve 54 and the conduit, the high-temperature dust-containing flue gas which passes through the primary screen enters the heat exchanger 52 through the smoke guide pipe 63, sufficient heat exchange is carried out when the nitrogen in the heat exchanger 52 meets the conduit containing the high-temperature dust-containing flue gas, the temperature of the flue gas begins to fall along with the gradual progress of the heat exchange when the temperature of the nitrogen rises, the flue gas with the temperature falling to about 140 ℃ enters the filter box 65 through the heat exchange outlet pipe 57, and the temperature sensor 56 that is equipped with monitors the inside nitrogen gas temperature of heat exchanger 52, and with temperature detection data transmission to control terminal on, make things convenient for the staff to know the real-time situation of nitrogen gas temperature, then open hot-gas valve 55, high temperature nitrogen gas can generate electricity or heat etc. to water through hot-gas valve 55, and be equipped with heat preservation 53 and reduce calorific loss to keeping warm to heat exchanger 52, be favorable to retrieving the inside waste heat of high temperature dusty flue gas like this, prevent that the flue gas from directly discharging and causing the huge waste of the energy, effectively improve the utilization ratio of the energy, and can keep warm to heat exchange process and reduce thermal loss, be equipped with scald prevention board 51 and avoid the staff mistake to touch high-temperature region and scald.

The utility model provides a graphitizing furnace waste heat recovery mechanism, set up heat transfer heat preservation device 5 in graphitizing furnace 1 front end through optimizing, retrieve the flue gas waste heat through anti-ironing board 51, heat exchanger 52, heat preservation 53, air conditioning valve 54 and hot gas valve 55, be favorable to retrieving the waste heat inside the high temperature dusty flue gas like this, prevent that the flue gas from discharging directly and causing the huge waste of the energy, effectively improve the utilization ratio of the energy, and can keep warm to the heat exchange process and reduce the thermal loss, be equipped with anti-ironing board 51 and avoid the staff to touch high temperature area by mistake and scald; set up filtration cleaning device 6 on graphitizing furnace 1 right side through optimizing, through prescreening dust collection box 62, screen cloth 64, rose box 65, electrostatic precipitator net 66, cleaning motor 67, cleaning brush 69 and main dust collection box 610 carry out the dual filtration to the dust in the flue gas, be favorable to filtering the collection to the inside dust of high temperature dusty flue gas like this, prescreening reduces the inside scale deposit rate of heat exchanger 52, the heat exchange efficiency of effectively having ensured heat exchanger 52 is in higher level for a long time, effectively avoid the dust to cause the pollution to the environment, effectively improve personnel operational environment's travelling comfort and the security in the working process.

Claims (9)

1. A waste heat recovery mechanism of a graphitization furnace comprises a graphitization furnace (1) and a power line (7); the method is characterized in that: still include heat transfer heat preservation device (5) and filter cleaning device (6), graphitizing furnace (1) front end is located in heat transfer heat preservation device (5), graphitizing furnace (1) right side is located in filtration cleaning device (6), heat transfer heat preservation device (5) are including preventing ironing board (51) and heat transfer exit tube (57), end face bolt fastening has anti-ironing board (51) before graphitizing furnace (1), heat exchanger (52) are installed to end face middle bolt before graphitizing furnace (1), heat preservation (53) are all installed to gluing to heat exchanger (52) lateral surface, and cold gas valve (54) are installed to the bottom pipe of nitrogen gas jar (4) lateral surface right-hand member, pipeline and heat exchanger (52) left side pipe connection are passed through on cold gas valve (54) right side, heat exchanger (52) right side top and hot gas valve (55) left side pipe connection, heat exchanger (52) and temperature sensor (56) top detection head bolted connection, heat exchanger (52) right side bottom trompil pipe installation has heat transfer exit tube (57).

2. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 1, wherein: the welding of graphitizing furnace (1) bottom has base (2), the welding of graphitizing furnace (1) top exhaust port has smoke outlet pipe (3), graphitizing furnace (1) left side is provided with nitrogen gas jar (4), graphitizing furnace (1) left side and power cord (7) fixed connection.

3. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 2, wherein: filter cleaning device (6) including sieve case (61) and strain gas bank of tubes (611) just, graphitizing furnace (1) top installation is fixed with sieve case (61) just, sieve case (61) just the bottom slides and is provided with sieve dust collection box (62) just, sieve case (61) preceding terminal surface upper end trompil pipe connection has guide tobacco pipe (63), go out tobacco pipe (3) and sieve case (61) back trompil pipe connection just.

4. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 3, wherein: the smoke guide pipe (63) is connected with a through hole pipeline at the top end of the outer side surface of the heat exchanger (52), the inner side surface of the primary screen box (61) is connected with the periphery of the screen (64) through bolts, the right side of the graphitization furnace (1) is provided with a filter box (65), and the right side in the filter box (65) is connected with the right side of the electrostatic dust removal net (66) through a square frame through bolts.

5. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 4, wherein: filter tank (65) right side fixed mounting has clean motor (67), clean motor (67) left side rotation axis and the coaxial rotation in L type clean pole (68) right side, L type clean pole (68) right side bolt fastening has cleaning brush (69).

6. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 5, wherein: the bottom slides in rose box (65) and is provided with main dust-collecting box (610), filter box (65) right side trompil pipeline is installed and is strained air calandria (611), rose box (65) left side front end through-hole and heat transfer exit tube (57) pipe connection.

7. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 5, wherein: the right bristles of the cleaning brush (69) are in sliding connection with the left side of the electrostatic dust collection net (66), and the maximum elastic coefficient of the right bristles of the cleaning brush (69) to the left side of the electrostatic dust collection net (66) is six centimeters.

8. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 4, wherein: and a sealing ring is fixedly arranged at the joint of the through hole at the front end of the left side of the filter box (65) and the pipeline of the heat exchange outlet pipe (57).

9. The waste heat recovery mechanism of the graphitization furnace as claimed in claim 6, wherein: the handle at the right side of the main dust collection box (610) is provided with a ferrule in an adhesive way, and the outer side surface of the ferrule on the handle at the right side of the main dust collection box (610) is provided with anti-skid grains.

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