CN102311300B - Device and process for recovering paraffin wax in industrial electrical ceramic production process - Google Patents
Device and process for recovering paraffin wax in industrial electrical ceramic production process Download PDFInfo
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- CN102311300B CN102311300B CN2011101701838A CN201110170183A CN102311300B CN 102311300 B CN102311300 B CN 102311300B CN 2011101701838 A CN2011101701838 A CN 2011101701838A CN 201110170183 A CN201110170183 A CN 201110170183A CN 102311300 B CN102311300 B CN 102311300B
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- Y—GENERAL 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
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Abstract
The invention discloses a device and a process for recovering paraffin wax in an industrial electrical ceramic production process. The device comprises a cartridge filter, a cooling plant and a refrigerating plant, wherein the cartridge filter is provided with an air inlet and an air outlet; a first-level filtering layer and a second-level filtering layer are arranged in sequence in the cartridge filter along the gas flow direction; the bottom of the cartridge filter is provided with an impurity discharge outlet; the air outlet is communicated with one side of the cooling plant; and the other side of the cooling plant is communicated with the refrigerating plant. The device for recovering the paraffin wax is designed and the recovery of the paraffin wax is implemented according to the paraffin wax discharge characteristics in the industrial electrical ceramic production process and the properties of the paraffin wax, so that the resources are saved, and the environment is protected, and the effect of energy saving and emission reduction is achieved; meanwhile, on one hand, the pollution caused by paraffin wax discharge is solved, on the other hand, the resource recycling is realized, and the production cost is reduced. The device disclosed by the invention has the advantages of small investment and high return and is simple and convenient for maintenance, and a part of parts of the device have low cost.
Description
Technical field
The present invention relates to the paraffin retrieving arrangement in a kind of industrial electrical equipment Production of Ceramics process and reclaim technology.When this device only is applicable to various industrial electrical equipment Production of Ceramics, the recovery of the barren rock wax that discharges in the de-waxing process.
Background technology
Current our domestic industry electric ceramic consumption is not less than 100 tons every day, generally contains the paraffin of 13%-15% in the industrial electrical equipment ceramic product prescription.Paraffin is formed: mainly be n-docosane (C
22H
46) and positive octacosane (C
28H
58), carbon elements is about 85%, contains protium about 14%.Paraffin character: be thick solid-state below 50 ℃; The 50-60 ℃ of solid-state liquid state that transfers to; 120-130 ℃ of paraffin evaporation.
So need carry out de-waxing (claiming dewaxing again) in the industrial electrical equipment ceramic sintering process, de-waxing technology is: the paraffin in 50～60 ℃ of ℃ of ceramic bodies of (1) kiln temperature slowly melts, by the solid-state liquid state that becomes, and beginning liquid de-waxing; (2) 100 ℃ of-300 ℃ of liquid paraffins are to sorbent material (giving birth to aluminum oxide) infiltration and migration; The paraffin evaporation of (100 ℃-160 ℃) adsorbent surface; (120 ℃-300 ℃) heat-up rate good more more slowly (10-30 ℃/h); Fully be incubated in the time of 200 ℃-300 ℃.
For the discarded paraffin that is produced in the de-waxing process, treatment process in 3 is arranged generally in the prior art: (1) square kiln de-waxing: paraffin is directly put into air; (2) pushed bat kiln de-waxing: paraffin directly feeds underground ditch; (3) paraffin flashes back.More than three kinds of treatment processs have disadvantage: (1) contaminate environment has a strong impact on people health; (2) polluted water resource, particularly Yixing are at the upper reaches, Taihu Lake, and TAIHU LAKE has directly been polluted in discharging like this; (3) the paraffin wasting of resources too big (more than 10,000 yuan in paraffin per ton) of flashing back, and increased CO greatly
2Discharging.
To above technical problem, need provide a kind of to paraffin retrieving arrangement in the electronic ceramics production process and recovery technology thereof.
Summary of the invention
The object of the invention provides the paraffin retrieving arrangement in a kind of industrial electrical equipment Production of Ceramics process.
Another object of the present invention is to provide a kind of utilizes above-mentioned paraffin retrieving arrangement to carry out the recovery technology that paraffin reclaims.
The object of the invention can be realized through following technical scheme:
Paraffin retrieving arrangement in a kind of industrial electrical equipment Production of Ceramics process, it comprises cartridge filter, refrigerating unit, refrigeration plant; Described cartridge filter is provided with inlet mouth and air outlet, in cartridge filter, is provided with one-level filtering layer and cascade filtration layer successively along gas flow direction, and the bottom of cartridge filter is provided with the impurity discharge port; One side of described air outlet and refrigerating unit is connected, and the opposite side and the refrigeration plant of described refrigerating unit are connected.
Paraffin retrieving arrangement in the above-mentioned industrial electrical equipment Production of Ceramics process; Its described one-level filtering layer and cascade filtration layer are arranged on the division board that the cross section is an inverted L shape; The two ends of this division board are separately fixed at the inwall that leans on inlet mouth of cartridge filter and lean on the bottom interior wall of air outlet; Make and be separated into the air inlet cavity in the cartridge filter and give vent to anger cavity; The position of corresponding impurity discharge port is provided with perforate at the transverse plate middle part of division board, and cascade filtration layer and one-level filtering layer are located at the place, upper and lower position of this perforate respectively.
Paraffin retrieving arrangement in the above-mentioned industrial electrical equipment Production of Ceramics process, its described one-level filtering layer are that the aperture is the ceramic honeycomb of 0.8mm, and described cascade filtration layer is 200～400 purpose filtering nets.
Paraffin retrieving arrangement in the above-mentioned industrial electrical equipment Production of Ceramics process, the top of its described cartridge filter also is provided with heat walkthrough mouth, and described heat walkthrough mouth top is provided with 500～800 purpose filtering nets.
Paraffin retrieving arrangement in the above-mentioned industrial electrical equipment Production of Ceramics process; The extraction line lower end of its described refrigeration plant also is provided with the gas wax separator; Described gas wax separator upper end is provided with 500～800 purpose filtering nets, and the cavity top that filtering net extend into the gas wax separator is passed in described extraction line lower end, and the bottom of gas wax separator is a funnel-form; Its funnel-form bottom is provided with discharge port, and the discharge port lower end is provided with valve.
Paraffin retrieving arrangement in the above-mentioned industrial electrical equipment Production of Ceramics process, its described refrigerating unit comprise that cooling trough and many groups are set up in parallel the radiating pipe in cooling trough, and an end of described radiating pipe all is connected with the air outlet of cartridge filter; The other end of radiating pipe all is connected with refrigeration plant, and the both sides of cooling trough are respectively equipped with water-in and water outlet, and described water-in is located at the bottom of a side of cooling trough, and water outlet is located at the top of the opposite side of cooling trough.Described radiating pipe (11) be shaped as U type or spirrillum.
Utilize the technology of the paraffin retrieving arrangement recovery paraffin in the above-mentioned industrial electrical equipment Production of Ceramics process; Its process is: 100～300 ℃ the paraffin mixed gas of discharging in the kiln body gets into cartridge filter via the inlet mouth on the cartridge filter; Via large granular impurity and the minimum particulate in one-level filtering layer and the cascade filtration layer difference filtering mixed gas; The granule foreign of filtering is emitted by the bottom impurity discharge port that is located at cartridge filter; Paraffin gas through filtering the filtering granule foreign cools off via carrying out one-level in the air outlet entering refrigerating unit; The cooled paraffin gas temperature of one-level is reduced to 60～70 ℃, carries out the secondary cooling at the entering refrigeration plant then, forms viscous liquid paraffin at last and reclaims.
The technology of above-mentioned recovery paraffin; But its described one-level filtering layer is the aperture is the large granular impurity in the ceramic honeycomb filtering waste gas of 0.8mm; But described cascade filtration layer is a minimum particulate in 200～400 molecules of interest net elimination waste gas, and the waste gas after the filtration only contains paraffin, air and a spot of water vapour.
The technology of above-mentioned recovery paraffin; Its high-temperature gas mixture body that contains gas paraffin that is to get in the cartridge filter can pass through the part heat in the heat walkthrough mouth release mixed gas that is located at the cartridge filter top, and heat walkthrough mouth is provided with 500～800 molecules of interest nets and can stops paraffin gas to be discharged by heat walkthrough mouth.
The characteristics of this equipment: 1. cartridge filter: use the cascade filtration way: the large granular impurity in the waste gas is removed with honeycomb ceramic filter earlier in (1).(2) filter the minimum particulate of removing in the waste gas (alumina powder) with 200-400 molecules of interest sieve, make waste gas only contain paraffin and air small amount of water vapor.
Process of cooling: 1. refrigerating unit: do quench liquid with nature water earlier and circulate, facility investment is little, but effective, and is easy to use, not high to operative employee's technical requirements.2. with refrigeration plant gas is further cooled off (plant capacity is little, and refrigerant fluid gas discharge capacity is little, reduces the pollution to air).
Beneficial effect of the present invention:
According to the characteristic of de-waxing characteristics in the industrial electrical equipment Production of Ceramics process and paraffin itself, design paraffin retrieving arrangement also carries out paraffin and reclaims.Both economized on resources, protected environment again, realized energy-saving and emission-reduction.Solved the pollution of paraffin discharging on the one hand, realized the resource recycling on the other hand, reduced production costs.This plant investment is little, income is high, convenience easy to maintenance, sub-unit cost are low.
Description of drawings
Fig. 1 is the structure iron of the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process.
Fig. 2 is the arrangement mode synoptic diagram arranged side by side of U type radiating pipe.
Embodiment
Paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process, it comprises cartridge filter 1, refrigerating unit 2, refrigeration plant 3; Described cartridge filter 1 is provided with inlet mouth 5 and air outlet 6, in cartridge filter 1, is provided with one-level filtering layer 7 and cascade filtration layer 8 successively along gas flow direction, and the bottom of cartridge filter 1 is provided with impurity discharge port 9; One side of described air outlet 6 and refrigerating unit 2 is connected, and the opposite side of described refrigerating unit 2 and refrigeration plant 3 are connected.Described one-level filtering layer 7 and cascade filtration layer 8 are arranged on the division board that the cross section is an inverted L shape 20; The two ends of this division board 20 are separately fixed at the inwall that leans on inlet mouth 5 of cartridge filter 1 and lean on the bottom interior wall of air outlet 6; Make and be separated into air inlet cavity 21 in the cartridge filter 1 and give vent to anger cavity 22; The position of corresponding impurity discharge port 9 is provided with perforate 23 at the transverse plate middle part of division board 20, and cascade filtration layer 8 is located with the upper and lower position that one-level filtering layer 7 is located at this perforate 23 respectively.One-level filtering layer 7 is the ceramic honeycomb of 0.8mm for the aperture, and described cascade filtration layer 8 is 200～400 purpose filtering nets.Perforate 23 is arranged on the position of corresponding impurity discharge port 9, can make the granule foreign of one-level filtering layer 7 and 8 filtering of cascade filtration layer drop on the position of impurity discharge port 9, convenient granule foreign of discharging in the cartridge filter 1.
As a kind of preferred version, the top of described cartridge filter 1 also is provided with heat walkthrough mouth 14, and described heat walkthrough mouth 14 tops are provided with 500～800 purpose filtering nets 15.The high-temperature gas mixture body that contains gas paraffin that gets in the cartridge filter 1 can pass through the part heat in the heat walkthrough mouth 14 release mixed gass that are located at cartridge filter 1 top, and 500～800 molecules of interest nets 15 that are provided with on the heat walkthrough mouth 14 can stop paraffin gas to be discharged by heat walkthrough mouth 14.Through the part heat that heat walkthrough mouth 14 discharges in the mixed gas, can reduce the temperature of mixed gas, to reduce the cooling pressure of back refrigerating unit 2 and refrigeration plant 3, save resource.
As preferred version further; Extraction line 25 lower ends of described refrigeration plant 3 also are provided with gas wax separator 4; Described gas wax separator 4 upper ends are provided with 500～800 purpose filtering nets 17, and the cavity top that filtering net 17 extend into gas wax separator 4 is passed in described extraction line 25 lower ends, and the bottom of gas wax separator 4 is a funnel-form; Its funnel-form bottom is provided with discharge port 16, and discharge port 16 lower ends are provided with valve 24.500～800 purpose filtering nets 17 of gas wax separator 4 upper ends are used for discharging the gas that the paraffin mixed gas does not have condensation; The thick paraffin that forms through refrigeration plant 3 cooling backs gets in the gas wax separator 4 via extraction line 25, and the valve 24 of opening discharge port 16 lower ends then reclaims, packing.
Described refrigerating unit 2 is a device known in the field with refrigeration plant 3, and refrigerating unit 2 comprises that cooling trough 10 and many groups are set up in parallel the radiating pipe 11 in cooling trough 10, and an end of described radiating pipe 11 all is connected with the air outlet 6 of cartridge filter 1; The other end of radiating pipe 11 all is connected with refrigeration plant 3, and the both sides of cooling trough 10 are respectively equipped with water-in 12 and water outlet 13, and described water-in 12 is located at the bottom of a side of cooling trough 10, and water outlet 13 is located at the top of the opposite side of cooling trough 10.Described radiating pipe 11 be shaped as U type or spirrillum.Refrigeration plant 3 comprises compression pump 18, radiating pipe 19 and refrigerant fluid (0 ℃～-18 ℃ of temperature).Reduce to 60～70 ℃ by refrigerating unit 2 cooled gas temperatures, pump in the radiating pipe 19, cool off by the refrigerant fluid in the refrigeration plant 3 by compression pump 18.Further cool off with 3 pairs of waste gas of refrigeration plant, plant capacity is little, and refrigerant fluid gas discharge capacity is little, reduces the pollution to air.
The material of the radiating pipe 11 of refrigerating unit 2 is the ultra-thin stainless steel case, rapid heat dissipation, long service life.Do quench liquid with nature water, easy to use, facility investment is little, and is easy for installation, safe, and cost is low, and the operative employee is not required very high technical requirements.With constantly circulation cooling of nature water (underground well water or tap water, about 20 ℃ of temperature), the conserve water resource adopts tight circulation line design, prevents that recirculated water from being polluted.
The staple of the mixed gas that is discharged in the industrial electrical equipment Production of Ceramics process: paraffin steam, water vapour, large granular impurity, few aluminum oxide dust, temperature is 100～300 ℃.
Reclaim the technology of paraffin; Its process is: 100～300 ℃ the paraffin mixed gas of discharging in the kiln body gets into cartridge filter 1 via the inlet mouth on the cartridge filter 15; Via large granular impurity and the minimum particulate in one-level filtering layer 7 and the cascade filtration layer 8 difference filtering mixed gas; The granule foreign of filtering is emitted by the bottom impurity discharge port 9 that is located at cartridge filter 1, gets into via air outlet 6 through the paraffin gas that filters the filtering granule foreign and carries out the one-level cooling in the refrigerating unit 2, and the cooled paraffin gas temperature of one-level is reduced to 60～70 ℃; Carry out the secondary cooling at entering refrigeration plant 3 then, form viscous liquid paraffin at last and reclaim.But described one-level filtering layer 7 is the large granular impurity in the ceramic honeycomb filtering waste gas of 0.8mm for the aperture; But described cascade filtration layer 8 is a minimum particulate in 200～400 molecules of interest net elimination waste gas, and the waste gas after the filtration only contains paraffin, air and a spot of water vapour.One-level filtering layer and cascade filtration layer adopt ceramic honey comb respectively and the stainless steel filtering net is high temperature resistant, corrosion-resistant, performance is good, indeformable, long service life.
The high-temperature gas mixture body that contains gas paraffin that gets in the cartridge filter 1 can pass through the part heat in the heat walkthrough mouth 14 release mixed gass that are located at cartridge filter 1 top, and heat walkthrough mouth 14 is provided with 500～800 molecules of interest nets 15 and can stops paraffin gas to be discharged by heat walkthrough mouth 14.
During the manufacture electric ceramic, hole kiln de-waxing every day adopts device of the present invention and technology to carry out paraffin and reclaims more than 1.2 tons, and the paraffin recovery is 85%-95%, if the time of proper extension de-waxing, the paraffin recovery is higher.The paraffin that reclaims can reuse, the additional income that reduces cost, and can reduce environmental pollution.
Claims (8)
1. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process is characterized in that it comprises cartridge filter (1), refrigerating unit (2), refrigeration plant (3); Described cartridge filter (1) is provided with inlet mouth (5) and air outlet (6), in cartridge filter (1), is provided with one-level filtering layer (7) and cascade filtration layer (8) successively along gas flow direction, and the bottom of cartridge filter (1) is provided with impurity discharge port (9); One side of described air outlet (6) and refrigerating unit (2) is connected, and the opposite side of described refrigerating unit (2) and refrigeration plant (3) are connected.
2. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 1; It is characterized in that described one-level filtering layer (7) and cascade filtration layer (8) are arranged on the division board that the cross section is an inverted L shape (20); The two ends of this division board (20) are separately fixed at the inwall that leans on inlet mouth (5) of cartridge filter (1) and lean on the bottom interior wall of air outlet (6); Make and be separated into air inlet cavity (21) and the cavity of giving vent to anger (22) in the cartridge filter (1); The position of corresponding impurity discharge port (9) is provided with perforate (23) in the middle part of the transverse plate of division board (20), and cascade filtration layer (8) and one-level filtering layer (7) are located at the place, upper and lower position of this perforate (23) respectively.
3. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 1 and 2 is characterized in that described one-level filtering layer (7) is the ceramic honeycomb of 0.8mm for the aperture, and described cascade filtration layer (8) is 200～400 purpose filtering nets.
4. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 1 and 2; The top that it is characterized in that described cartridge filter (1) also is provided with heat walkthrough mouth (14), and described heat walkthrough mouth (14) top is provided with 500～800 purpose filtering nets (15).
5. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 1; Extraction line (25) lower end that it is characterized in that said refrigeration plant (3) also is provided with gas wax separator (4); Described gas wax separator (4) upper end is provided with 500～800 purpose filtering nets (17); The cavity top that filtering net (17) extend into gas wax separator (4) is passed in described extraction line (25) lower end; The bottom of gas wax separator (4) is a funnel-form, and its funnel-form bottom is provided with discharge port (16), and discharge port (16) lower end is provided with valve (24).
6. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 1; It is characterized in that described refrigerating unit (2) comprises that cooling trough (10) and many groups are set up in parallel the radiating pipe (11) in cooling trough (10), an end of described radiating pipe (11) all is connected with the air outlet (6) of cartridge filter (1); The other end of radiating pipe (11) all is connected with refrigeration plant (3); The both sides of cooling trough (10) are respectively equipped with water-in (12) and water outlet (13); Described water-in (12) is located at the bottom of a side of cooling trough (10), and water outlet (13) is located at the top of the opposite side of cooling trough (10).
7. the paraffin retrieving arrangement in the industrial electrical equipment Production of Ceramics process according to claim 6, what it is characterized in that described radiating pipe (11) is shaped as U type or spirrillum.
8. utilize the technology of the paraffin retrieving arrangement recovery paraffin in the described industrial electrical equipment Production of Ceramics of claim 1 process; It is characterized in that 100～300 ℃ the paraffin mixed gas of discharging in the kiln body gets into cartridge filter (1) via the inlet mouth (5) on the cartridge filter (1); Via large granular impurity and the minimum particulate in one-level filtering layer (7) and cascade filtration layer (8) the difference filtering mixed gas; The granule foreign of filtering is emitted by the bottom impurity discharge port (9) that is located at cartridge filter (1); Paraffin gas through filtering the filtering granule foreign cools off via carrying out one-level in air outlet (6) the entering refrigerating units (2); The cooled paraffin gas temperature of one-level is reduced to 60～70 ℃, carries out the secondary cooling at entering refrigeration plant (3) then, forms viscous liquid paraffin at last and reclaims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101701838A CN102311300B (en) | 2011-06-23 | 2011-06-23 | Device and process for recovering paraffin wax in industrial electrical ceramic production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101701838A CN102311300B (en) | 2011-06-23 | 2011-06-23 | Device and process for recovering paraffin wax in industrial electrical ceramic production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102311300A CN102311300A (en) | 2012-01-11 |
| CN102311300B true CN102311300B (en) | 2012-05-30 |
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ID=45424909
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101701838A Expired - Fee Related CN102311300B (en) | 2011-06-23 | 2011-06-23 | Device and process for recovering paraffin wax in industrial electrical ceramic production process |
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| Country | Link |
|---|---|
| CN (1) | CN102311300B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537161B (en) * | 2013-11-04 | 2016-08-17 | 圣象实业（江苏）有限公司 | A kind of sealing wax line gas treatment equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921488C3 (en) * | 1979-05-26 | 1981-11-12 | Wolfgang Dr. 6333 Braunfels Hamann | Device for the recovery of xyol and / or paraffin and the like. Substances for histological purposes in pathology |
| CN202099254U (en) * | 2011-06-23 | 2012-01-04 | 宜兴市宝光耐火电瓷有限公司 | Device for recovering paraffins produced in ceramic production process of industrial electrical equipment |
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2011
- 2011-06-23 CN CN2011101701838A patent/CN102311300B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102311300A (en) | 2012-01-11 |
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