NL2035879A - Environment-friendly exhaust apparatus for use in sintering of porous silicon nitride ceramic material - Google Patents
Environment-friendly exhaust apparatus for use in sintering of porous silicon nitride ceramic material Download PDFInfo
- Publication number
- NL2035879A NL2035879A NL2035879A NL2035879A NL2035879A NL 2035879 A NL2035879 A NL 2035879A NL 2035879 A NL2035879 A NL 2035879A NL 2035879 A NL2035879 A NL 2035879A NL 2035879 A NL2035879 A NL 2035879A
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- Netherlands
- Prior art keywords
- tank body
- filter screen
- ball
- sintering
- side wall
- Prior art date
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 37
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 29
- 229910021426 porous silicon Inorganic materials 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 claims description 40
- 238000009833 condensation Methods 0.000 claims description 38
- 230000005494 condensation Effects 0.000 claims description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 230000000670 limiting effect Effects 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 23
- 238000004064 recycling Methods 0.000 claims description 13
- 238000010408 sweeping Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 10
- 238000010079 rubber tapping Methods 0.000 claims 3
- 238000003825 pressing Methods 0.000 abstract description 7
- 239000002912 waste gas Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 20
- 239000007789 gas Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 239000000428 dust Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 229940083608 sodium hydroxide Drugs 0.000 description 8
- 235000011121 sodium hydroxide Nutrition 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0006—Coils or serpentines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides an environment—friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material. The apparatus includes a tank body, where the bottom of an inner cavity of the tank body is provided, with a sliding groove, a first spring is fixedly connected in the sliding groove, and a top end of the first spring is fixedly connected to a filter screen. According to the present invention, through the cooperation among a rotary seat, a hitting rod, a hitting ball, a touch ball, a returning spring, and an abutment ball, a rotary shaft drives the abutment ball to rotate, and the abutment ball generates a pressing force on the touch ball, so that the touch ball and the hitting rod are turned downwards.
Description
ENVIRONMENT-FRIENDLY EXHAUST APPARATUS FOR USE IN SINTERING OF
POROUS SILICON NITRIDE CERAMIC MATERIAL
The present invention relates to the field of sintering tail gas processing, and in particular to an environment-friendly ex- haust apparatus for use in sintering of a porous silicon nitride ceramic material.
A porous silicon nitride ceramic, an artificially synthesized material, is used in the field of high temperature-resistant engi- neering in a wide range because of its excellent comprehensive properties such as high hardness, high strength, high temperature resistance, oxidation resistance, wear resistance, and thermal shock resistance. The porous ceramic material, a type of multi- pore ceramic, is formed with a pore size and distribution con- trolled in a material forming and sintering process. Owing to the high porosity, the porous ceramic has a much lower density than a homogeneous dense ceramic, and thus is lightweight. The porous silicon nitride ceramic material requires a high temperature of 1300°C in a sintering process. Consequently, discharged tail gas carries a vast number of waste gas impurities and enormous high- temperature heat.
Currently, an existing exhaust apparatus for use in sintering of a porous silicon nitride ceramic material can only filter out and neutralize impurities in waste gas in a use process. However, enormous high-temperature heat in the tail gas is directly dis- charged instead of being effectively processed. In consequence, a working environment is deteriorated and even a global warming trend is intensified. After the existing exhaust apparatus has been used for a long time, a filter part may be blocked by dust repeatedly. Accordingly, a ventilation capacity of the exhaust ap- paratus is reduced, an entire processing efficiency is affected, and the number of maintenance of the apparatus is increased, which is not conducive to long-term stable running of the apparatus.
A problem of how to invent an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material, so as to diminish these problems is to be solved by those skilled in the art immediately.
In order to overcome the above defects, the present invention provides an environment-friendly exhaust apparatus for use in sin- tering of a porous silicon nitride ceramic material, so as to di- minish the problems that high-temperature heat in sintering tail gas fails to be effectively processed, leading to adverse effects on an environment; and a filter part of a conventional apparatus may be blocked by dust repeatedly, affecting an entire processing efficiency.
The present invention is implemented as follows:
The present invention provides an environment-friendly ex- haust apparatus for use in sintering of a porous silicon nitride ceramic material. The apparatus includes a tank body, a gas inlet pipe fixedly connected to a side wall of the bottom of the tank body, and a gas outlet pipe fixedly connected to the top of the tank body; where the bottom of the tank body is provided with a clearing window, the clearing window is made of a transparent ma- terial, the bottom of an inner cavity of the tank body is annular- ly provided with sliding grooves, and first springs are fixedly connected in the sliding grooves; one end, away from the bottom of the sliding groove, of the first spring is fixedly connected to a filter screen, and the filter screen is attached to an inner wall of the tank body and slidably connected to same; a middle portion inside the tank body is fixedly connected to a processing pool, and a middle portion of the inner cavity of the tank body is ro- tatably connected to a rotary shaft; and the top of the tank body is fixedly connected to a driving motor, and an output shaft of the driving motor is fixedly connected to the rotary shaft; and the apparatus further includes a recycling assembly, where the recycling assembly is mounted on the inner wall of the tank body, and the recycling assembly is configured to condense and re-
cycle a processing liquid carried out by hot gas; and an anti-blocking assembly, where the anti-blocking assembly is mounted on an upper surface of the filter screen, and the anti- blocking assembly is configured to vibrate and hit the filter screen, so as to prevent the filter screen from being blocked.
Preferably, a side wall of the processing tank is fixedly connected to ventilation pipes, the ventilation pipes are annular- ly arranged along a central axis of the processing pool, and the processing pool is filled with a sodium hydroxide solution.
Preferably, a middle portion of the processing pool is pro- vided with a connection ring, and an outer wall of the connection ring is fixedly connected to the side wall of the processing pool; the rotary shaft penetrates a middle portion of the connection ring, and an inner wall of the connection ring is rotatably con- nected to a side wall of the rotary shaft; and stirring rods are fixedly connected to portions, positioned at a lower portion of the processing pool, of the side wall of the rotary shaft, and the stirring rods are annularly arranged along a center of the rotary shaft.
Preferably, the recycling assembly includes condensation pipes, and the condensation pipes are annularly fixed to the side wall of the tank body along a central axis of the tank body; an upper end and a lower end of the condensation pipe penetrate the side wall of the tank body, the upper end of the condensation pipe is fixedly connected to an annular pipe, and a side wall of the lower end of the condensation pipe is provided with a sealing valve; the four condensation pipes are in communication with the annular pipe, and an inner wall of the annular pipe is fixedly connected to a side wall of an upper portion of the tank body; and portions, where the condensation pipes in the inner cavity of the tank body are positioned, of a side wall of the rotary shaft are fixedly connected to stirring blades, and the stirring blades are annularly arranged along a center of the rotary shaft.
Preferably, a portion, positioned in the inner cavity of the tank body, of the condensation pipe is bent in a serpentine shape, and the condensation pipe and the annular pipe are filled with temperature reduction water.
Preferably, the four stirring blades are spaced from the top of the inner cavity of the tank body by different distances, and edges of the stirring blades are in a wave shape.
Preferably, the anti-blocking assembly includes rotary seats, the rotary seats are annularly arranged on the upper surface of the filter screen along a central axis of the tank body, and hit- ting rods are rotatably connected in the rotary seats; a hitting ball is fixedly connected to one end, close to the side wall of the tank body, of the hitting rod, a touch ball is fixedly con- nected to one side, away from the hitting ball, of the hitting rod, and a limiting groove is provided on one side, close to the touch ball, of the hitting rod; limiting sliding rods are fixedly connected to portions, positioned at the bottoms of the limiting grooves, of the upper surface of the filter screen, an outer diam- eter of the limiting sliding rods is less than an inner diameter of the limiting grooves, side walls of the limiting sliding rods are sleeved with returning springs, and an outer diameter of the returning springs is greater than the inner diameter of the limit- ing grooves; and portions, positioned below the filter screen, of a side wall of the rotary shaft are fixedly connected to elastic sweeping rods, the elastic sweeping rods are distributed in a tri- angular shape along a center of the rotary shaft, and upper side walls of the elastic sweeping rods are attached to the bottom of the filter screen.
Preferably, a mounting plate is fixedly connected to a por- tion, positioned between the processing pool and the filter screen, of a side wall of the rotary shaft, abutment balls are fixedly connected to the bottom of the mounting plate, the abut- ment balls are annularly arranged along a central axis of the ro- tary shaft, and the abutment balls are in movable contact with the touch balls.
Preferably, a distance between the abutment ball and the fil- ter screen is less than that between the touch ball and the filter screen, and surfaces of the abutment ball and the touch ball are polished smoothly.
Preferably, a hitting pad is fixedly connected to a portion, positioned at a contact position between the hitting ball and the filter screen, of the upper surface of the filter screen, and the hitting pad is made of a wear-resistant metal material.
The present invention has the beneficial effects as follows: through the cooperation among the rotary seat, the hitting rod, 5 the hitting ball, the touch ball, the returning spring, and the abutment ball, the rotary shaft drives the abutment ball to ro- tate, and the abutment ball generates a pressing force on the touch ball, so that the touch ball and the hitting rod are turned downwards. When a pressing state is released, the hitting ball rapidly descends under the action of the gravity of the hitting ball and a springback effect of the returning spring to hit the filter screen. Accordingly, the filter screen generates a shaking effect to shake off dust and impurities attached to the bottom of the filter screen. Therefore, the filter screen is effectively prevented from being blocked, a use effect of the filter screen is ensured, and a purification efficiency of the device is improved.
In addition, the device reduces a temperature preliminarily through gas-liquid mixing, and then re-condenses tail gas and steam, so as to reduce heat carried by waste gas during discharg- ing. Therefore, a greenhouse effect influence from high- temperature waste gas generated through sintering on an environ- ment is further weakened. Moreover, a liquid in the condensation pipe can also be heated, so that the steam is condensed and recy- cled for reuse, and a desirable energy-saving and environment- friendly effect is realized.
In order to describe the technical solutions in the embodi- ments of the present invention more clearly, a brief description of the accompanying drawings required for describing the embodi- ments will be provided below. It should be understood that the following accompanying drawings show merely some examples of the present invention, and therefore should not be deemed as limiting the scope. Those of ordinary skill in the art can also derive oth- er accompanying drawings from these accompanying drawings without creative efforts.
FIG. 1 is a front-view overall schematic structural diagram of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an em- bodiment of the present invention;
FIG. 2 is a back-view partial schematic structural diagram of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodi- ment of the present invention;
FIG. 3 is an enlarged schematic structural diagram of area A in FIG. 2 of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodiment of the present invention;
FIG. 4 is a front-view schematic structural diagram of an in- terior of a tank body of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodiment of the present invention;
FIG. 5 is a top-view schematic structural diagram of an inte- rior of a tank body of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodiment of the present invention;
FIG. 6 is a bottom-view schematic structural diagram of an interior of a tank body of an environment-friendly exhaust appa- ratus for use in sintering of a porous silicon nitride ceramic ma- terial according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an anti-blocking assembly of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodiment of the present invention; and
FIG. 8 is a schematic structural diagram of a rotary shaft of an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material according to an embodi- ment of the present invention.
In the figures: 1. tank body; 101. clearing window; 2. slid- ing groove; 21. first spring; 22. filter screen; 221. hitting pad; 3. processing pool; 31. ventilation pipe; 32. connection ring; 33. stirring rod; 4, rotary shaft; 5. recycling assembly; 51. conden- sation pipe; 52. annular pipe; 53. stirring blade; 6. anti- blocking assembly; 61. rotary seat; 62. hitting rod; 63. hitting ball; 64. touch ball; 65. limiting groove; 66. limiting sliding rod; 67. returning spring; 68. elastic sweeping rod; and 69. abut- ment ball.
In order to make the objectives, technical solutions, and ad- vantages in the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
Apparently, the described embodiments are some embodiments rather than all embodiments of the present invention. All other embodi- ments derived by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.
In the description of the present invention, it should be un- derstood that the orientation or position relations indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “up”, “down”, “front”, “rear”, “left”, “right” “vertical”, “horizontal”, “top”, “bottom”, “inside”, “out- side”, “clockwise”, “counterclockwise”, etc. are based on the ori- entation or position relations shown in the accompanying drawings, are merely for facilitating the description of the present inven- tion and simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a particular orientation or be constructed and operated in a partic- ular orientation, and therefore cannot be interpreted as limiting the present invention.
With reference to FIGs. 1-8, an environment-friendly exhaust apparatus for use in sintering of a porous silicon nitride ceramic material includes a tank body 1, a gas inlet pipe fixedly connect- ed to a side wall of the bottom of the tank body 1, and a gas out- let pipe fixedly connected to the top of the tank body 1; where the bottom of the tank body 1 is provided with a clearing window 101, the clearing window 101 is made of a transparent material, the bottom of an inner cavity of the tank body 1 is annularly pro-
vided with sliding grooves 2, and first springs 21 are fixedly connected in the sliding grooves 2; one end, away from the bottom of the sliding groove 2, of the first spring 21 is fixedly con- nected to a filter screen 22, and the filter screen 22 is attached to an inner wall of the tank body 1 and slidably connected to same; a middle portion inside the tank body 1 is fixedly connected to a processing pool 3, and a middle portion of the inner cavity of the tank body 1 is rotatably connected to a rotary shaft 4; and the top of the tank body 1 is fixedly connected to a driving mo- tor, and an output shaft of the driving motor is fixedly connected to the rotary shaft 4.
It should be noted that in a daily use process, a dust accu- mulation degree at the bottom of the tank body 1 is observed through the clearing window 101. Therefore, whether it is required to stop the apparatus for clearing is determined; and if yes, it is only required to open the clearing window 101 to take out accu- mulated dust inside the tank body 1.
The apparatus further includes a recycling assembly 5, where the recycling assembly 5 is mounted on the inner wall of the tank body 1, and the recycling assembly 5 is configured to condense and recycle a processing liquid carried out by hot gas; and an anti-blocking assembly 6, where the anti-blocking assembly 6 is mounted on an upper surface of the filter screen 22, and the anti-blocking assembly 6 is configured to vibrate and hit the fil- ter screen 22, so as to prevent the filter screen 22 from being blocked.
With reference to FIG. 5, further, a side wall of the pro- cessing tank 3 is fixedly connected to ventilation pipes 31, the ventilation pipes 31 are annularly arranged along a central axis of the processing pool 3, and the processing pool 3 is filled with a sodium hydroxide solution.
With reference to FIG. 5, further, a middle portion of the processing pool 3 is provided with a connection ring 32, and an outer wall of the connection ring 32 is fixedly connected to the side wall of the processing pool 3; the rotary shaft 4 penetrates a middle portion of the connection ring 32, and an inner wall of the connection ring 32 is rotatably connected to a side wall of the rotary shaft 4; and stirring rods 33 are fixedly connected to portions, positioned at a lower portion of the processing pool 3, of the side wall of the rotary shaft 4, and the stirring rods 33 are annularly arranged along a center of the rotary shaft 4.
It should be noted that when waste gas generated through sin- tering enters the tank body 1 through the gas inlet pipe, flue gas particles in the waste gas are firstly filtered away through the filter screen 22. After an internal pressure is increased by con- tinuously introducing the waste gas into the tank body 1, filtered waste gas enters the processing pool 3 through the ventilation pipe 31 and emerges upwards from the bottom of the sodium hydrox- ide solution in the processing pool 3. Firstly, a liquid solution can be configured to preliminarily reduce a temperature of high- temperature waste gas, so that heat carried by tail gas during subsequent discharging is reduced, and the greenhouse influence from hot exhaust on an environment is reduced. Then, the rotary shaft 4 drives the stirring rod 33 to rotate, so that the waste gas is fully mixed with the sodium hydroxide solution. Therefore, a processing efficiency of the device is improved, and the sodium hydroxide solution can be effectively prevented from precipitat- ing. Accordingly, a purification effect of the processing pool 3 is improved, and a processing effect of the device is improved.
With reference to FIGs. 4, 5, and 6, further, the recycling assembly 5 includes condensation pipes 51, and the condensation pipes 51 are annularly fixed to the side wall of the tank body 1 along a central axis of the tank body 1; an upper end and a lower end of the condensation pipe 51 penetrate the side wall of the tank body 1, the upper end of the condensation pipe 51 is fixedly connected to an annular pipe 52, and a side wall of the lower end of the condensation pipe 51 is provided with a sealing valve; the four condensation pipes 51 are in communication with the annular pipe 52, and an inner wall of the annular pipe 52 is fixedly con- nected to a side wall of an upper portion of the tank body 1; and portions, where the condensation pipes 51 in the inner cavity of the tank body 1 are positioned, of a side wall of the rotary shaft 4 are fixedly connected to stirring blades 53, and the stirring blades 53 are annularly arranged along a center of the rotary shaft 4.
It should be noted that when the waste gas is introduced into the sodium hydroxide solution for mixing, part of the solution will be evaporated under the action of a high temperature of the waste gas, accompanying by upward movement of the processed waste gas. Then, the rotary shaft 4 rotates, and steam and a solution are shifted towards the condensation pipes 51 arranged around through the stirring blades 53, so that the steam and the pro- cessed waste gas are cooled. Therefore, the heat carried by the waste gas during discharging is reduced, and the greenhouse effect influence from the high-temperature waste gas generated through sintering on the environment is further weakened. Moreover, the liquid in the condensation pipes 51 can be heated, so that the steam is condensed and recycled for reuse. Accordingly, rationali- ty of the device is improved. In conclusion, the device realizes the desirable energy-saving and environment-friendly effect.
With reference to FIGs. 4 and 5, further, a portion, posi- tioned in the inner cavity of the tank body 1, of the condensation pipe 51 is bent in a serpentine shape, and the condensation pipe 51 and the annular pipe 52 are filled with temperature reduction water.
It should be noted that the temperature reduction used can be clean water directly used in daily life. The condensation pipe 51 bent in the serpentine shape can condense transpired flue gas in a wider range. Therefore, a cooling speed of the condensation pipe 51 is increased, and a reuse effect of the device is improved.
With reference to FIGs. 4 and 6, further, the four stirring blades 53 are spaced from the top of the inner cavity of the tank body 1 by different distances, and edges of the stirring blades 53 are in a wave shape.
It should be noted that by arranging the four stirring blades 53 in a staggered manner, the stirring blades 53 can have a great- er fanning area inside the tank body 1, so that more gas posi- tioned at different positions inside the tank body 1 can be pushed towards the condensation pipes 51. Therefore, the gas can be in contact with the condensation pipes 51 more comprehensively, and a cooling effect of the condensation pipes 51 can be improved.
With reference to FIGs. 6, 7, and 8, further, the anti- blocking assembly 6 includes rotary seats €é1, the rotary seats 61 are annularly arranged on the upper surface of the filter screen 22 along a central axis of the tank body 1, and hitting rods 62 are rotatably connected in the rotary seats 61; a hitting ball 63 is fixedly connected to one end, close to the side wall of the tank body 1, of the hitting rod 62, a touch ball 64 is fixedly connected to one side, away from the hitting ball €63, of the hit- ting rod 62, and a limiting groove 65 is provided on one side, close to the touch ball 64, of the hitting rod 62; limiting slid- ing rods 66 are fixedly connected to portions, positioned at the bottoms of the limiting grooves 65, of the upper surface of the filter screen 22, an outer diameter of the limiting sliding rods 66 is less than an inner diameter of the limiting grooves 65, side walls of the limiting sliding rods 66 are sleeved with returning springs 67, and an outer diameter of the returning springs 67 is greater than the inner diameter of the limiting grooves 65; and portions, positioned below the filter screen 22, of a side wall of the rotary shaft 4 are fixedly connected to elastic sweeping rods 68, the elastic sweeping rods 68 are distributed in a triangular shape along a center of the rotary shaft 4, and upper side walls of the elastic sweeping rods 68 are attached to the bottom of the filter screen 22.
With reference to FIGs. 7 and 8, further, a mounting plate is fixedly connected to a portion, positioned between the processing pool 3 and the filter screen 22, of a side wall of the rotary shaft 4, abutment balls 69 are fixedly connected to the bottom of the mounting plate, the abutment balls 69 are annularly arranged along a central axis of the rotary shaft 4, and the abutment balls 69 are in movable contact with the touch balls 64.
It should be noted that through the cooperation among the ro- tary seat 61, the hitting rod 62, the hitting ball 63, the touch ball 64, the returning spring 67, and the abutment ball 69, when rotating, the rotary shaft 4 drives the abutment ball 69 to rotate synchronously. In a rotation process, the abutment ball 69 makes contact with the touch ball 64. The abutment ball 69 generates a pressing force on the touch ball 64 when the rotary shaft 4 ro-
tates, so that the touch ball 64 and the hitting rod 62 are turned downwards. When a pressing state between the abutment ball 69 and the touch ball 64 is released, the hitting ball 63 rapidly de- scends under the action of the gravity of the hitting ball and a springback effect of the returning spring 67 to hit the filter screen 22. Accordingly, the filter screen 22 shakes slightly under the action of the first spring 21 and the sliding groove 2, and generates a shaking effect inside the filter screen to shake off dust and impurities attached to the bottom of the filter screen 22. Therefore, the filter screen 22 is effectively prevented from being blocked, a use effect of the filter screen 22 is ensured, and a purification efficiency of the device is improved. In addi- tion, the elastic sweeping rods 68 distributed in the triangular shape can also sweep the bottom of the filter screen 22 in the ro- tation process of the rotary shaft 4, so that blockage of the fil- ter screen 22 is effectively reduced, and the use effect of the filter screen 22 is further ensured. It should be noted that when the filter screen 22 shakes, the elastic sweeping rods 68 will elastically deform accordingly without affecting shaking of the filter screen 22.
With reference to FIGs. 7 and 8, further, a distance between the abutment ball 69 and the filter screen 22 is less than that between the touch ball 64 and the filter screen 22, and surfaces of the abutment ball 69 and the touch ball 64 are polished smooth- ly.
It should be noted that the contact between the abutment ball 69 and the touch ball 64 can be ensured, and the filter screen 22 can be hit with minimal friction loss between the abutment ball and the touch ball.
With reference to Fig. 7, further, a hitting pad 221 is fix- edly connected to a portion, positioned at a contact position be- tween the hitting ball 63 and the filter screen 22, of the upper surface of the filter screen 22, and the hitting pad 221 is made of a wear-resistant metal material.
It should be noted that with the above structure arranged, the hitting ball 63 is unlikely to be damaged after hitting the filter screen 22 for a long time. Therefore, the durability of the hitting ball 63 and the filter screen 22 is improved, and the num- ber of maintenance and replacement of the filter screen 22 of the device is also reduced.
With reference to FIGs. 1-8, a working principle of the envi- ronment-friendly exhaust apparatus for use in sintering of a po- rous silicon nitride ceramic material is as follows: when in use, the waste gas generated through sintering enters the tank body 1 through the gas inlet pipe, flue gas particles in the waste gas are firstly filtered away through the filter screen 22. After an internal pressure is increased by continuously introducing the waste gas into the tank body 1, filtered waste gas enters the pro- cessing pool 3 through the ventilation pipe 31 and emerges upwards from the bottom of the sodium hydroxide solution in the processing pool 3, so that the impurities of the waste gas and the heat are absorbed. Moreover, in such a process, the rotary shaft 4 drives the stirring rod 33 to rotate, so that the waste gas is fully mixed with the sodium hydroxide solution. Therefore, a processing efficiency of the device is improved.
In addition, the rotary shaft 4 drives the stirring blades 53 to push the steam and the solution towards the condensation pipes 31 arranged around, so as to cool the steam and the processed waste gas. In such a process, cooled steam re-drops into the pro- cessing pool 3 under the action of the gravity of the cooled steam, and cooled waste gas reduces the heat carried during dis- charging, so that the greenhouse effect influence from the high- temperature waste gas generated through sintering on the environ- ment is further weakened. In addition, after the absorbing the heat of the steam and the waste gas, the condensation pipes 51 heat the liquid therein, so that a thermal efficiency can be re- used, and the desirable energy-saving and environment-friendly ef- fect can be realized.
Further, when rotating, the rotary shaft 4 drives the abut- ment ball 69 to rotate synchronously. In a rotation process, the abutment ball 69 makes contact with the touch ball 64. The abut- ment ball 69 generates the pressing force on the touch ball 64 when the rotary shaft 4 rotates, so that the touch ball 64 and the hitting rod 62 are turned downwards. When the pressing state be-
tween the abutment ball 69 and the touch ball 64 is released, the hitting ball 63 rapidly descends under the action of the gravity of the hitting ball and the springback effect of the returning spring 67 to hit the filter screen 22. Accordingly, the filter screen 22 shakes slightly under the action of the first spring 21 and the sliding groove 2, and generates a shaking effect inside the filter screen to shake off the dust and impurities attached to the bottom of the filter screen 22. Moreover, in such a process, the elastic sweeping rods 68 positioned at the bottom of the rota- ry shaft 4 sweep the bottom of the filter screen 22, so that the use effect of the filter screen 22 is further ensured.
Finally, the dust accumulation degree at the bottom of the tank body 1 is observed through the clearing window 101. There- fore, whether it is required to stop the apparatus for clearing is determined; and if yes, it is only required to open the clearing window 101 to take out accumulated dust inside the tank body 1.
It should be noted that a specific model and specification of the motor is required to be determined according to an actual specification of the device, etc. A specific selection calculation method is the same as that in the prior art, which will not be re- peated.
What are described above are merely the preferred embodiments of the present invention, but are not intended to limit the pre- sent invention. Those skilled in the art can make various modifi- cations and variations to the present invention. Any modifica- tions, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should fall within the scope of protection of the disclosure.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194728.3A CN115487614B (en) | 2022-09-29 | 2022-09-29 | Environment-friendly exhaust equipment for sintering silicon nitride porous ceramic material |
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| NL2035879A true NL2035879A (en) | 2024-04-08 |
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| NL2035879A NL2035879A (en) | 2022-09-29 | 2023-09-26 | Environment-friendly exhaust apparatus for use in sintering of porous silicon nitride ceramic material |
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| Country | Link |
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| CN (1) | CN115487614B (en) |
| NL (1) | NL2035879A (en) |
| WO (1) | WO2024066573A1 (en) |
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| CN115487614B (en) * | 2022-09-29 | 2023-11-03 | 衡阳凯新特种材料科技有限公司 | Environment-friendly exhaust equipment for sintering silicon nitride porous ceramic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10263507A (en) * | 1997-03-28 | 1998-10-06 | Kubota Corp | Gasified matter separator |
| JP3899404B2 (en) * | 2002-12-26 | 2007-03-28 | 国立大学法人東京海洋大学 | Equipment for removing particulate matter in exhaust gas |
| CN207307453U (en) * | 2017-08-18 | 2018-05-04 | 新昌县羽林街道东陈机械厂 | A kind of waste gas purifying environmental protecting device |
| CN209752548U (en) * | 2018-12-27 | 2019-12-10 | 洛宁惠农土质保育研发有限公司 | Carbonization combustion waste gas treatment device |
| CN109966845A (en) * | 2019-04-03 | 2019-07-05 | 丽水青蓝环保科技有限公司 | A kind of quick processing equipment of chemical industry tail gas |
| US11110390B1 (en) * | 2020-03-18 | 2021-09-07 | Chio Kang Medical, Inc. | Systems and methods for treating sterilization exhaust gas containing ethylene oxide |
| CN212548716U (en) * | 2020-06-22 | 2021-02-19 | 张征宇 | A exhaust gas purification device for atmospheric pollution administers |
| CN111686571A (en) * | 2020-06-30 | 2020-09-22 | 徐科明 | Self-cleaning heat energy recovery energy-saving combustion waste gas treatment device |
| CN213655848U (en) * | 2020-10-20 | 2021-07-09 | 天津市明佳科技发展有限公司 | Prevent quick vent valve of jam |
| CN213657569U (en) * | 2020-11-17 | 2021-07-09 | 鲁东大学 | Condenser for amino acid fermentation production |
| CN112516696A (en) * | 2020-11-18 | 2021-03-19 | 威海众海智能科技有限公司 | Constant-temperature and constant-humidity air treatment equipment and method |
| CN214131036U (en) * | 2020-12-14 | 2021-09-07 | 山西智创药研科技有限公司 | Waste gas treatment device is used in production of medical intermediate |
| CN114031130A (en) * | 2021-11-01 | 2022-02-11 | 平克宇 | Microbial sewage treatment system |
| CN115487614B (en) * | 2022-09-29 | 2023-11-03 | 衡阳凯新特种材料科技有限公司 | Environment-friendly exhaust equipment for sintering silicon nitride porous ceramic material |
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2022
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| WO2024066573A1 (en) | 2024-04-04 |
| CN115487614B (en) | 2023-11-03 |
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