CN204544702U - A kind of catalyst screening machine - Google Patents
A kind of catalyst screening machine Download PDFInfo
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- CN204544702U CN204544702U CN201520259128.XU CN201520259128U CN204544702U CN 204544702 U CN204544702 U CN 204544702U CN 201520259128 U CN201520259128 U CN 201520259128U CN 204544702 U CN204544702 U CN 204544702U
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- catalyst
- vibratory sieve
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- classifying drum
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Abstract
The utility model discloses a kind of catalyst screening machine, belong to metallurgical off-gas acid-making industry catalyst screening plant field, comprise the classifying drum screen with different mesh size, it is characterized in that, classifying drum screen has charging aperture and discharging opening, and discharge outlet is provided with edge perpendicular to the reciprocating vibratory sieve in classifying drum screen direction; The below correspondence of vibratory sieve and classifying drum screen is provided with graded collecting device; And the end of vibratory sieve is provided with porcelain ball collection mouth.To catalyst, porcelain ball, catalyst dust, broken catalyst, there is stronger separating power, in catalyst screening process, farthest reduce the physical damnification that catalyst is caused; Convenient operation, structure is simple, easy to maintenance, greatly reduces construction number after using; The problem that when solving catalyst screening, catalyst dust is excessive and the problem of catalyst dust collection, screening efficiency improves greatly.
Description
Technical field
The utility model relates to metallurgical off-gas acid-making industry catalyst screening plant field, in particular to a kind of catalyst screening machine.
Background technology
The general principle of metallurgical off-gas acid-making be sulfur dioxide and oxygen under the effect of catalyst catalyst, generate sulfur trioxide, and then generate sulfuric acid after absorbing with concentrated acid.When sulfur dioxide and oxygen proportion certain, only the activity of guaranteed catalyst and quality, could improve conversion ratio.If catalyst quality better will improve conversion ratio and then improve acid yield, simultaneously because conversion ratio is high, the content of sulfur dioxide entering tail gas desulphurizing system will be less, easily carry out process and make tail gas sulphur dioxide up to standard.Otherwise if catalyst is second-rate can reduce acid yield, the content of sulfur dioxide entering tail gas desulphurizing system can increase, and not easily carries out process and makes tail gas sulphur dioxide exceed standard simultaneously.
In the conversion process of metallurgical off-gas acid-making, the Main Function of catalyst generates sulfur trioxide after making sulfur dioxide and oxygen reaction, catalyst is in long production process, progressively can there is pulverization situation, catalyst bed layer thickness will be reduced on the one hand after efflorescence, block catalyst bed simultaneously, cause the situation that conversion ratio declines, conversion system resistance raises.Above appearance after two kinds of situations, there will be the situation of producing the decline of acid amount, the minimizing of exhaust emissions pressure increase, tolerance.So catalyst efflorescence to a certain extent time, must sieve catalyst, the catalyst of efflorescence is departed from, add new catalyst guarantee and transform the stable of resistance, the thickness of catalyst bed, makes flue gas fully uniformly across each beds, reach tolerance and conversion requirement.
Current catalyst screening mostly is artificial screening, can produce a large amount of catalyst dust from flying, pollute construction environment, containing a large amount of vanadic anhydrides in catalyst, have harm to the health of operative employee in catalyst screening process.In addition because taking up room of converter is large, job site is narrow and small, reduces the efficiency of artificial screening to a certain extent, increases screening difficulty, extend the time of workmen's catalyst screening, improve the probability that workmen's vanadic anhydride is poisoning.Meanwhile, because catalyst amount is large, manually sieve inefficiency, labour cost is high, and catalyst dust can cause huge injury to human body.
Utility model content
The purpose of this utility model is to provide a kind of catalyst screening machine, to solve the problem that artificial screening harm is large, screening efficiency is low.
For realizing the utility model object, the technical scheme adopted is: a kind of catalyst screening machine, comprise the classifying drum screen with different mesh size, classifying drum screen has charging aperture and discharging opening, and discharge outlet is provided with edge perpendicular to the reciprocating vibratory sieve in classifying drum screen direction; The below correspondence of vibratory sieve and classifying drum screen is provided with graded collecting device; And the end of vibratory sieve is provided with porcelain ball collection mouth.
Further, described vibratory sieve comprises screen cloth and drives the reciprocating transmission mechanism of screen cloth; Transmission mechanism is connected between screen cloth and the main shaft of classifying drum screen.
Further, described vibratory sieve is equipped with the belt pulley be connected with classifying drum screen main shaft belt transmission, and belt pulley is provided with the reciprocating slider-crank mechanism of drive screen cloth.
Further, be provided with seal closure outside described vibratory sieve and classifying drum screen, seal closure offered porose and be connected with bag-type dust case, the below of bag-type dust case is provided with dust collection.
Further, described bag-type dust case is also connected with water dust cleaning case by pipeline, and pipeline is provided with centrifugal fan.
Further, described vibratory sieve and classifying drum screen with respect to the horizontal plane have inclination angle; Porcelain ball collection mouth is positioned at the one end under being tilted to of vibratory sieve.
Further, described classifying drum screen is divided into the first order, the second level from charging aperture successively to discharging opening direction, and the mesh size of the first order is less than the mesh size of the second level; Graded collecting device comprises the dust settling mouth, catalyst collection mouth, the small part catalyst collection mouth that lay respectively at below first order rotary screen, second level rotary screen, vibratory sieve.
The beneficial effects of the utility model:
1, catalyst from converter sieves after separation through classifying drum screen, enter into along on the vibratory sieve of reciprocating vibration of discharging direction, again be separated, change sifting vibrating state, after bolting, porcelain ball enters porcelain ball and collects mouth along direction of reciprocating vibration, the small part catalyst of mixing falls into the graded collecting device of below, improve separating effect, avoid in prior art, classifying drum screen rotating speed is only adopted to be difficult to carry out control suitable with screening situation, overall screen componental movement state is single, separating effect is not good, small part catalyst and porcelain ball mixing discharging is still had after classified rotary screen discharging, and often need again to sieve, reduce screening efficiency, and this screening machine makes porcelain ball and catalyst can reach first separation, screening efficiency reaches more than 95%,
2, because whole conversion catalyst quantity is large, in some cycles, efflorescence degree is large, the dust pelletizing system of this screening machine adopts the centrifugal fan of Wind Volume, effective raising dust removing effects, bulky grain powder enters dust collection through sack cleaner, prevent bulky grain catalyst grains from entering centrifugal blower, affect air quantity, and easily block due to cloth bag in bag-type dust, affect screening progress, after air quantity increases in addition, in cloth bag, dust recycling rate can strengthen, site operation environmental pollution is serious, so the tiny catalyst dust by bag-type dust case is caused water dust cleaning case, be only absorbed by the water, air is discharged from water dust cleaning case top, vanadic anhydride is easy to become solution in water, water dedusting object can be reached, the maximized pollution decreasing construction environment,
3, catalyst screening machine of the present utility model has stronger separating power to catalyst, porcelain ball, catalyst dust, broken catalyst, farthest reduces the physical damnification caused catalyst in catalyst screening process; Convenient operation, structure is simple, easy to maintenance, greatly reduces construction number after using; The problem that when solving catalyst screening, catalyst dust is excessive and the problem of catalyst dust collection, and screening efficiency improves greatly, meets the productive function of modern enterprise low cost, high efficiency, of low pollution, safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the catalyst screening machine that the utility model provides;
Fig. 2 is the side view of the catalyst screening machine internal vibration sieve that the utility model provides.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1, Fig. 2 show the catalyst screening machine that the utility model provides, comprise the classifying drum screen 1 with different mesh size, classifying drum screen 1 has charging aperture 11 and discharging opening 12, and discharging opening 12 place is provided with edge perpendicular to the reciprocating vibratory sieve 2 in classifying drum screen direction; The below correspondence of vibratory sieve 2 and classifying drum screen 1 is provided with graded collecting device 3; And the end of vibratory sieve 2 is provided with porcelain ball collection mouth 4.
Vibratory sieve 2 comprises screen cloth 21 and drives the reciprocating transmission mechanism of screen cloth 21; Transmission mechanism is connected between the main shaft 13 of screen cloth 21 and classifying drum screen 1, concrete employing belt transmission, vibratory sieve 2 is equipped with the belt pulley be connected with classifying drum screen main shaft 13 belt transmission, then is provided with slider-crank mechanism 22 by belt pulley and drives screen cloth 21 to move back and forth.Screen cloth 21 is by the transmission of the main shaft 13 of classifying drum screen 1, and realize moving back and forth, catalyst and porcelain ball move back and forth along with screen cloth 21, reach the object that catalyst is separated with porcelain ball.
The screen frame of screen cloth 21 as required, with the framework of angle steel composition sphere of movements for the elephants shape, adopt the mode of straight weldering that stainless steel cloth is crimped on framework, except mouth 4 direction collected by the porcelain ball of screen cloth 21, other three limits general steel sheets are increased, prevent catalyst and porcelain ball from dropping in reciprocating motion in orbit, stuck moto-vibro screen, and then affect the process of catalyst screening.Because screen cloth 21 carries out traverse motion by the transmission of main shaft 13, so screen cloth 21 can not be fixed on raceway, but adopt the mode of bearing crimping.
Be provided with seal closure 5 outside vibratory sieve 2 and classifying drum screen 1, seal closure 5 offered porose and be connected with bag-type dust case 6, the below of bag-type dust case 6 is provided with dust collection 7.Such employing all-sealed structure, utilizes pipeline to be connected with bag-type dust case 6 in hermetically-sealed construction perforate, avoids a large amount of catalyst dust from flying produced in the course of the work.Bag-type dust case 6 is also connected with water dust cleaning case 8 by pipeline, and pipeline is provided with centrifugal fan 9.
Rotating speed due to screening machine can affect the separating effect of catalytic powder and the degradation rate again of intact catalyst.Therefore, electromechanical driving system adopts VFC, according to the screening effect adjustment rotating speed of catalyst, can effectively control the screening effect of catalyst.
Catalyst screening machine is mainly divided into two Iarge-scale system, i.e. screening system and dust pelletizing system.
Screening system is made up of main stand, motor, reductor, vibratory sieve 2, classifying drum screen 1 etc., and screening machine adopts VFC, can sieve needs, carry out speed regulating control to classifying drum screen 1, vibratory sieve 2 according to reality.Vibratory sieve 2 and classifying drum screen 1 with respect to the horizontal plane have inclination angle, and namely classifying drum screen 1 and vibratory sieve 2 adopt inclined design, convenient discharging smoothly, and porcelain ball collection mouth 4 is positioned at the one end under being tilted to of vibratory sieve 2.Classifying drum screen 1 is divided into the first order, the second level from charging aperture successively to discharging opening direction, and the mesh size of the first order is less than the mesh size of the second level; Graded collecting device 3 comprises the dust settling mouth 31, catalyst collection mouth 32, the small part catalyst collection mouth 33 that lay respectively at below first order rotary screen, second level rotary screen, vibratory sieve 2.I.e. classifying drum screen 1 point two sections: first paragraph and first order rotary screen are first separation, the tiny screen cloth of outsourcing, aperture is less than catalyst, porcelain ball size, is greater than broken catalyst size, for separating of catalyst dust, broken catalyst; Second segment and second level rotary screen are secondary separation, outsourcing coarse net, and aperture is greater than catalyst size, are less than porcelain ball size, for separating of intact catalyst.Vibratory sieve 2, be three separation, vibratory sieve 2 points two outlets, mesh size is greater than catalyst diameter, is less than the diameter of porcelain ball, in vibratory sieve 2 operation of reciprocating vibration of sieve, thoroughly can be separated catalyst and porcelain ball, catalyst falls to small part catalyst from outlet below and collects mouth 33, and porcelain ball falls to porcelain ball from outlet above and collects mouth 4, for separating of remaining catalyst, porcelain ball.
Dust pelletizing system is made up of bag-type dust case 6, dust collection 7, centrifugal fan 9, water dust cleaning case 8, connecting pipe etc.Bag-type dust case 6 Main Function filters bulky grain catalyst dust, and also prevent centrifugal fan 9 operationally, bulky grain catalyst dust enters blower fan under the effect of blast simultaneously, blocking blower fan and pipeline.Installed dust collection 7 below bag-type dust case 6, for collecting bulky grain catalyst dust, dust collection 7 need according to catalyst screening amount timing cleaning.Bag-type dust case 6 utilizes pipeline to be connected with centrifugal fan 9.Centrifugal fan 9 is capital equipments of dust pelletizing system, is used for drawing dirt, is the power hinge of whole dust pelletizing system.Centrifugal fan 9 utilizes pipeline to be connected with water dust cleaning case 8.Water dust cleaning case 8 is dust pelletizing system finishing operation, and the tiny catalyst dust by bag-type dust case 6 is caused water dust cleaning case 8, because vanadic anhydride is easy to become solution in water, can reach water dedusting object.
Operation principle: in the classifying drum screen 1 that the catalyst in converter is rotated by Cemented filling to screening machine, after being separated through three sections, porcelain ball, catalyst, broken catalyst, catalyst dust are separated completely, and wherein porcelain ball, catalyst, broken catalyst carry out pack and process.Catalyst dust can filter out bulky grain catalyst dust under the effect of centrifugal fan 9 when bag-type dust case 6, and bulky grain catalyst dust can utilize dust collection 7 to collect rear pack; Tiny catalyst dust enters water dust cleaning case 8 after bag-type dust case 6, is only absorbed by the water, and air is discharged from water dust cleaning case 8 top.Sewage in water dust cleaning case 8 is handled as follows: after the moisture natural evaporation in water dust cleaning case 8, carries out collection pack to catalyst dust bottom it.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a catalyst screening machine, comprises the classifying drum screen with different mesh size, it is characterized in that, classifying drum screen has charging aperture and discharging opening, and discharge outlet is provided with edge perpendicular to the reciprocating vibratory sieve in classifying drum screen direction; The below correspondence of vibratory sieve and classifying drum screen is provided with graded collecting device; And the end of vibratory sieve is provided with porcelain ball collection mouth.
2. catalyst screening machine according to claim 1, is characterized in that, described vibratory sieve comprises screen cloth and drives the reciprocating transmission mechanism of screen cloth; Transmission mechanism is connected between screen cloth and the main shaft of classifying drum screen.
3. catalyst screening machine according to claim 2, is characterized in that, described vibratory sieve is equipped with the belt pulley be connected with classifying drum screen main shaft belt transmission, and belt pulley is provided with the reciprocating slider-crank mechanism of drive screen cloth.
4. catalyst screening machine according to claim 1, is characterized in that, is provided with seal closure outside described vibratory sieve and classifying drum screen, and seal closure offered porose and be connected with bag-type dust case, the below of bag-type dust case is provided with dust collection.
5. catalyst screening machine according to claim 4, is characterized in that, described bag-type dust case is also connected with water dust cleaning case by pipeline, and pipeline is provided with centrifugal fan.
6. catalyst screening machine according to claim 1, is characterized in that, described vibratory sieve and classifying drum screen with respect to the horizontal plane have inclination angle; Porcelain ball collection mouth is positioned at the one end under being tilted to of vibratory sieve.
7. catalyst screening machine according to claim 1, is characterized in that, described classifying drum screen is divided into the first order, the second level from charging aperture successively to discharging opening direction, and the mesh size of the first order is less than the mesh size of the second level; Graded collecting device comprises the dust settling mouth, catalyst collection mouth, the small part catalyst collection mouth that lay respectively at below first order rotary screen, second level rotary screen, vibratory sieve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259128.XU CN204544702U (en) | 2015-04-27 | 2015-04-27 | A kind of catalyst screening machine |
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| CN201520259128.XU CN204544702U (en) | 2015-04-27 | 2015-04-27 | A kind of catalyst screening machine |
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| CN204544702U true CN204544702U (en) | 2015-08-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710086A (en) * | 2016-04-08 | 2016-06-29 | 江苏龙净科杰催化剂再生有限公司 | Separating unit for plate-type catalyst |
| CN106824385A (en) * | 2017-03-31 | 2017-06-13 | 辽宁工程技术大学 | A kind of automatic sieving unit for crushing gangue |
| CN107744875A (en) * | 2017-11-22 | 2018-03-02 | 贵州金鑫铝矿有限公司 | A kind of aluminum ore disintegrating machine |
| CN115041386A (en) * | 2022-05-25 | 2022-09-13 | 马彩荣 | Quick dust collecting equipment of wisdom agricultural seed |
| CN115138555A (en) * | 2021-03-31 | 2022-10-04 | 中冶宝钢技术服务有限公司 | Catalyst screening plant |
-
2015
- 2015-04-27 CN CN201520259128.XU patent/CN204544702U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710086A (en) * | 2016-04-08 | 2016-06-29 | 江苏龙净科杰催化剂再生有限公司 | Separating unit for plate-type catalyst |
| CN106824385A (en) * | 2017-03-31 | 2017-06-13 | 辽宁工程技术大学 | A kind of automatic sieving unit for crushing gangue |
| CN107744875A (en) * | 2017-11-22 | 2018-03-02 | 贵州金鑫铝矿有限公司 | A kind of aluminum ore disintegrating machine |
| CN115138555A (en) * | 2021-03-31 | 2022-10-04 | 中冶宝钢技术服务有限公司 | Catalyst screening plant |
| CN115041386A (en) * | 2022-05-25 | 2022-09-13 | 马彩荣 | Quick dust collecting equipment of wisdom agricultural seed |
| CN115041386B (en) * | 2022-05-25 | 2024-04-12 | 新疆金天山农业科技有限责任公司 | Wisdom agricultural seed removes dust equipment fast |
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