CN113291711A - Furfural production raw material conveying and dust removing device and raw material purifying and conveying method - Google Patents
Furfural production raw material conveying and dust removing device and raw material purifying and conveying method Download PDFInfo
- Publication number
- CN113291711A CN113291711A CN202110629477.6A CN202110629477A CN113291711A CN 113291711 A CN113291711 A CN 113291711A CN 202110629477 A CN202110629477 A CN 202110629477A CN 113291711 A CN113291711 A CN 113291711A
- Authority
- CN
- China
- Prior art keywords
- raw material
- suction pipe
- air suction
- dust removal
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/14—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in closed conduits, e.g. tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/042—Granular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
本发明涉及糠醛生产原料输送除尘装置，包括粉碎机和配酸机、封闭输送机、旋风卸料器和除尘机构；封闭输送机的出料口与粉碎机的进料口连接，粉碎机的出料口经倾斜设置的连接管与竖直安装的吸风管连接，吸风管上端与旋风卸料器的进料口连接，旋风卸料器的出料口与配酸机的进料口连接；旋风卸料器的出气口经第二风机与除尘机构连接。通过本发明糠醛产品得率高，相应的吨醛耗玉米芯少。
The invention relates to a raw material conveying and dedusting device for furfural production, comprising a pulverizer, an acid dispenser, a closed conveyor, a cyclone discharger and a dedusting mechanism; the discharge port of the closed conveyor is connected with the feed port of the pulverizer, and the The feeding port is connected with the vertically installed suction pipe through the inclined connecting pipe, the upper end of the suction pipe is connected with the feeding port of the cyclone discharger, and the discharge port of the cyclone discharger is connected with the feeding port of the acid blender. ; The air outlet of the cyclone discharger is connected with the dust removal mechanism through the second fan. The furfural product of the present invention has a high yield, and the corresponding ton of aldehyde consumes less corncob.
Description
Technical Field
The invention relates to the technical field of furfural production, in particular to a furfural production raw material conveying and dedusting device and a raw material purifying and conveying method.
Background
In the furfural production process, in order to prevent the corncob raw material from mildewing in rainy days, the corncob raw material is stacked in a flat-top truncated cone shape in a storage yard, and the height of the corncob raw material is 8-14 m. The raw material complex acid occupies an important ring in the furfural production process, and directly influences the raw material hydrolysis efficiency and the yield of furfural products. The existing raw material acid preparation process is to dig down piled materials like cutting bean curd by a rotary digging machine, output the piled materials by a belt conveyor and load the materials into a small self-unloading type transport vehicle, then unload the materials into a hopper and crush the materials in a crusher, screen and remove impurities by a blanking pipe by a hopper lifter and then feed the materials into a storage bin, and then load the materials into a hydrolysis pot by an acid preparation machine belt conveyor for hydrolysis.
The above production process has the following problems: on one hand, the raw materials are exposed in the transportation process, so that the dust is very large, the environment-friendly requirement is not met, the impurity removal effect is not ideal, and a large amount of dust is entrained in the raw materials to influence the air permeability of a material layer in the hydrolysis pot; on the other hand, in the acid preparation machine, dust generally sinks to the bottom to adsorb excessive dilute sulfuric acid, so that the raw material is not uniformly acidified, the aldehyde yield is reduced, indexes such as corncob consumption per ton of aldehyde, gas consumption, power consumption, water consumption and the like are ultrahigh, and the production cost is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a furfural production raw material conveying and dust removing device and a raw material purifying and conveying method.
The invention provides a furfural production raw material conveying and dedusting device, which comprises a pulverizer, an acid preparation machine, a closed conveyor, a cyclone discharger and a dedusting mechanism; the discharge port of the closed conveyor is connected with the feed port of the crusher, the discharge port of the crusher is connected with an air suction pipe which is vertically installed through an obliquely arranged connecting pipe, the upper end of the air suction pipe is connected with the feed port of a cyclone discharger, and the discharge port of the cyclone discharger is connected with the feed port of an acid blending machine; the gas outlet of the cyclone discharger is connected with the dust removal mechanism through a second fan.
Preferably, the angle between the connecting pipe and the air suction pipe is 30-45 degrees.
Preferably, the distance between the connecting position of the connecting pipe and the air inlet of the air suction pipe is 1/9-1/12 of the total length of the air suction pipe. The connecting pipe and the air suction pipe are arranged at an included angle and at a connecting position, so that corncob raw materials and impurities can be separated as far as possible, and the purifying effect of the corncob raw materials is improved.
Preferably, the first fan is arranged in the suction pipe.
Preferably, a impurity collecting pool is arranged below the air suction pipe.
Preferably, the dust removal mechanism comprises a bag type dust remover and a water film dust removal tower, wherein an air inlet of the bag type dust remover is connected with an air outlet of the cyclone discharger through a pipeline, and an air outlet of the bag type dust remover is connected with an air inlet of the water film dust removal tower through a pipeline.
Preferably, a waste discharge port at the bottom of the water film dedusting tower is connected with a sedimentation tank, a clear liquid discharge port of the sedimentation tank is connected with a water inlet at the upper part of the water film dedusting tower through a circulating pump, and an exhaust port is arranged at the top of the water film dedusting tower. And pumping the supernatant with less dust into the upper part of the water film dust removal tower by a circulating pump for spraying and dust removal after precipitation, recycling, and emptying clean tail gas through an exhaust port.
In a second aspect of the invention, a method for purifying and conveying a raw material by using the furfural production raw material conveying and dedusting device is provided, which comprises the following steps:
(1) the corncob raw materials are conveyed to a crusher through a closed conveyor to be crushed, the crushed materials enter an air suction pipe through a connecting pipe, the air speed in the air suction pipe is controlled to be 4.2-4.8m/s, the air pressure allowance is 800 plus 1200Pa, the corncob raw materials are separated from impurities in the air suction pipe, the purified corncob raw materials upwards enter a cyclone discharger along the air suction pipe, and the purified corncob raw materials are discharged from the outlet of the cyclone discharger and enter an acid blending machine to be blended with acid;
(2) the tail gas carrying the dust and the crushed powder enters a bag type dust remover through the gas outlet of the cyclone discharger for preliminary dust removal, dust-containing waste gas enters a water film dust removal tower through the gas outlet of the bag type dust remover for further dust removal, and clean tail gas is emptied through the gas outlet of the water film dust removal tower.
Through the setting of aspiration channel and the interior wind speed of control aspiration channel and wind pressure surplus, can make corncob raw materials and impurity fully separate, guarantee the purifying effect of corncob raw materials.
Preferably, in the step (1), the corncob is pulverized to have a particle size of 0.5cm to 1.0 cm.
The invention has the beneficial effects that:
the raw materials are conveyed by winnowing air, so that the raw material purification effect is good, the impurity removal effect of sand, stone, dust and the like is good, the raw materials are favorably and uniformly blended with acid, and the acid blending amount can be reduced; because the raw material has good purification effect, uniform particles and uniform acid, the raw material has good air permeability after being put into a hydrolysis pot, the hydrolysis rate is high under high temperature and high pressure, the furfural product yield is high, the corresponding ton aldehyde consumes less corncobs, consumes less water, electricity and steam, the cost is reduced, and the benefit is improved; high efficiency, energy saving, environmental protection and increased yield.
Drawings
FIG. 1 is a schematic structural view of the present invention;
shown in the figure:
1. the device comprises a closed conveyor, 2, a crusher, 3, a cyclone discharger, 4, an acid preparation machine, 5, a connecting pipe, 6, an air suction pipe, 7, a impurity collecting tank, 8, a second fan, 9, a bag type dust collector, 10, a water film dust removal tower, 11 and a sedimentation tank.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in figure 1, the invention comprises a closed conveyor 1, a pulverizer 2, a cyclone discharger 3, an acid distributor 4 and a dust removal mechanism. The discharge port of the closed conveyor 1 is connected with the feed port of the crusher 2, the discharge port of the crusher 2 is connected with an air suction pipe 6 which is vertically installed through a connecting pipe 5 which is obliquely arranged, and a impurity collecting pool 7 is arranged below the air suction pipe 6. The upper end of the suction pipe 6 is connected with the feed inlet of the cyclone discharger 3, and the discharge hole of the cyclone discharger 3 is connected with the feed inlet of the acid distributor 4.
The first fan is arranged in the air suction pipe 6, the included angle between the connecting pipe 5 and the air suction pipe 6 is 30-45 degrees, and the distance between the connecting position of the connecting pipe 5 and the air inlet of the air suction pipe 6 accounts for 1/9-1/12 of the total length of the air suction pipe 6.
The closed conveyor 1 is a closed buried scraper conveyor, the crusher 2 and the cyclone discharger 3 are all of the existing structures, and the specific structure and the working principle of the closed buried scraper conveyor are not described again. The acid preparing machine 4 is a conventional spiral stirrer, and the specific structure thereof is the prior art, which is not described herein again.
The gas outlet of the cyclone discharger 3 is connected with a dust removing mechanism through a second fan 8. The dust removal mechanism comprises a bag type dust collector 9 and a water film dust removal tower 10, wherein the air inlet of the bag type dust collector 9 is connected with the air outlet of the cyclone discharger 3 through a pipeline, and the air outlet of the bag type dust collector 9 is connected with the air inlet of the water film dust removal tower 10 through a pipeline. The bottom of water film gas wash tower 10 is arranged the waste mouth and is connected with sedimentation tank 11, and the clear solution discharge port of sedimentation tank 11 passes through the circulating pump and is connected with water film gas wash tower 10 upper portion water inlet, and the clear solution that the upper strata dustiness is few after the sediment is squeezed into water film gas wash tower 10 upper portion again by the circulating pump and is sprayed the dust removal, recycles, and water film gas wash tower 10 top sets up the gas vent, and clean tail gas is through the gas vent evacuation. The bag-type dust collector 9 and the water film dust removing tower 10 are both of the prior structure, and the specific structure and the working principle thereof are not described in detail herein.
The method for purifying and conveying the raw materials by using the conveying and dedusting device comprises the following steps:
(1) corncob raw materials are conveyed to a crusher 2 through a closed conveyor 1 to be crushed, the particle size of the crushed corncobs is 0.5cm-1.0cm, the crushed materials enter an air suction pipe 6 through a connecting pipe 5, the air speed in the air suction pipe 6 is controlled to be 4.2-4.8m/s, the air pressure allowance is 800 plus materials of 1200Pa, the air pressure allowance is the allowance after the resistance of a pipe network and equipment is overcome, and sand stones, bricks, metal impurities and dust with large specific gravity and slightly large particle size are settled in a waste collection pool 7 below an air inlet of the air suction pipe 6 in the operation process due to different specific gravity and different suspension speed of the components to carry out regular solid waste treatment; the relatively pure corncob granules upwards enter the cyclone discharger 3 along the air suction pipe 6, are discharged from the outlet of the cyclone discharger 3 and enter the acid blending machine 4 for acid blending;
(2) tail gas with dust powder with the particle size below 36 meshes enters a bag type dust collector 9 through an air outlet of the cyclone discharger 3 for primary dust collection, and dust-containing waste gas (the dust content is about 3000 mg/m)3-5000mg/m3) The waste gas is discharged from the gas outlet of the bag type dust collector 9, enters the water film dust removing tower 10 from the gas inlet at the lower end of the water film dust removing tower 10, water enters from the water inlet at the upper part of the water film dust removing tower 10 and is sprayed layer by layer from tower tray sieve pores to form a layer by layer water film, the water film adsorbs dust in the waste gas, the dust enters the bottom waste discharge port of the tower along with waste water and flows into the sedimentation tank 11, and clean tail gas is discharged from the gas outlet.
The raw materials are conveyed by winnowing air, so that the raw material purification effect is good, the impurity removal effect of sand, stone, dust and the like is good, the raw materials are favorably and uniformly blended with acid, and the acid blending amount can be reduced; because the raw material has good purification effect, uniform particles and uniform acid, the raw material has good air permeability after being put into a hydrolysis pot, the hydrolysis rate is high under high temperature and high pressure, the furfural product yield is high, the corresponding ton aldehyde consumes less corncobs, consumes less water, electricity and steam, the cost is reduced, and the benefit is improved; high efficiency, energy saving, environmental protection and increased yield. The problems of environmental pollution and serious material scattering caused by open feeding of the traditional belt conveyor are solved by the closed conveyor 1; through dust removal mechanism, dust removal effect is good, and is energy-concerving and environment-protective.
According to the traditional process, only the raw materials are sieved to remove impurities, the impurities in the raw materials cannot be effectively removed, 10.5-12 tons of corncobs per ton of aldehyde are consumed through the traditional process, the aldehyde yield is 9.52% -8.33%, and 19-22 tons of aldehyde are consumed by saturated steam. After the production raw materials are purified by the method, 9.2-9.5 tons of corncobs per ton of aldehyde are consumed, the aldehyde yield is 10.87% -10.52%, and 14-17 tons of aldehyde are consumed by saturated steam.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (9)
1. Dust collector is carried to furfural raw materials for production, including rubbing crusher and complex acid machine, its characterized in that: the device also comprises a closed conveyor, a cyclone discharger and a dust removal mechanism; the discharge port of the closed conveyor is connected with the feed port of the crusher, the discharge port of the crusher is connected with an air suction pipe which is vertically installed through an obliquely arranged connecting pipe, the upper end of the air suction pipe is connected with the feed port of a cyclone discharger, and the discharge port of the cyclone discharger is connected with the feed port of an acid blending machine; the gas outlet of the cyclone discharger is connected with the dust removal mechanism through a second fan.
2. The furfural production raw material conveying and dedusting device according to claim 1, characterized in that: the angle between the connecting pipe and the air suction pipe is 30-45 degrees.
3. The furfural production raw material conveying and dedusting device according to claim 1, characterized in that: the distance between the connecting position of the connecting pipe and the air inlet of the air suction pipe is 1/9-1/12 of the total length of the air suction pipe.
4. The furfural production raw material conveying and dedusting device according to claim 1, characterized in that: a first fan is arranged in the air draft tube.
5. The furfural production raw material conveying and dedusting device according to claim 1, characterized in that: and a impurity collecting pool is arranged below the air suction pipe.
6. The furfural production raw material conveying and dedusting device according to claim 1, characterized in that: the dust removal mechanism comprises a bag type dust remover and a water film dust removal tower, wherein an air inlet of the bag type dust remover is connected with an air outlet of the cyclone discharger through a pipeline, and an air outlet of the bag type dust remover is connected with an air inlet of the water film dust removal tower through a pipeline.
7. The furfural production raw material conveying and dedusting device according to claim 6, characterized in that: the bottom waste discharge port of the water film dedusting tower is connected with the sedimentation tank, the clear liquid discharge port of the sedimentation tank is connected with the water inlet at the upper part of the water film dedusting tower through a circulating pump, and the top of the water film dedusting tower is provided with an exhaust port.
8. The method for purifying and conveying the raw materials by using the furfural production raw material conveying and dedusting device as claimed in any one of claims 1 to 7 is characterized by comprising the following steps of:
(1) the corncob raw materials are conveyed to a crusher through a closed conveyor to be crushed, the crushed materials enter an air suction pipe through a connecting pipe, the air speed in the air suction pipe is controlled to be 4.2-4.8m/s, the air pressure allowance is 800 plus 1200Pa, the corncob raw materials are separated from impurities in the air suction pipe, the purified corncob raw materials upwards enter a cyclone discharger along the air suction pipe, and the purified corncob raw materials are discharged from the outlet of the cyclone discharger and enter an acid blending machine to be blended with acid;
(2) the tail gas carrying the dust and the crushed powder enters a bag type dust remover through the gas outlet of the cyclone discharger for preliminary dust removal, dust-containing waste gas enters a water film dust removal tower through the gas outlet of the bag type dust remover for further dust removal, and clean tail gas is emptied through the gas outlet of the water film dust removal tower.
9. The method of purifying a feed material of claim 8, wherein: in the step (1), the corn cob is crushed to have the granularity of 0.5cm-1.0 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629477.6A CN113291711A (en) | 2021-06-07 | 2021-06-07 | Furfural production raw material conveying and dust removing device and raw material purifying and conveying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629477.6A CN113291711A (en) | 2021-06-07 | 2021-06-07 | Furfural production raw material conveying and dust removing device and raw material purifying and conveying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113291711A true CN113291711A (en) | 2021-08-24 |
Family
ID=77327322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110629477.6A Pending CN113291711A (en) | 2021-06-07 | 2021-06-07 | Furfural production raw material conveying and dust removing device and raw material purifying and conveying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113291711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101789A (en) * | 2023-04-12 | 2023-05-12 | 山东奥诺能源科技股份有限公司 | Pneumatic conveying cyclone discharging device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624344A (en) * | 2015-01-26 | 2015-05-20 | 上海康拜环保设备有限公司 | Crop straw bundle negative-pressure coarse grinding method and crop straw bundle negative-pressure coarse grinding equipment |
| CN206777882U (en) * | 2017-02-28 | 2017-12-22 | 天津美得生物科技有限公司 | A kind of drying system of mixed feed additive |
| CN208917108U (en) * | 2018-08-30 | 2019-05-31 | 河北春蕾实业集团有限公司 | A kind of furfural high-efficient production line |
| KR20200017232A (en) * | 2018-08-08 | 2020-02-18 | 한국가스안전공사 | Processing system for industrial gases comprising fluorine gas and method for treating fluorine gas using thereof |
| CN212237659U (en) * | 2020-03-24 | 2020-12-29 | 济宁市恒联工程机械有限公司 | Novel straw biomass production device |
| CN216970918U (en) * | 2021-06-07 | 2022-07-15 | 肥城金塔酒精化工设备有限公司 | Furfural production raw material conveying and dedusting device |
-
2021
- 2021-06-07 CN CN202110629477.6A patent/CN113291711A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624344A (en) * | 2015-01-26 | 2015-05-20 | 上海康拜环保设备有限公司 | Crop straw bundle negative-pressure coarse grinding method and crop straw bundle negative-pressure coarse grinding equipment |
| CN206777882U (en) * | 2017-02-28 | 2017-12-22 | 天津美得生物科技有限公司 | A kind of drying system of mixed feed additive |
| KR20200017232A (en) * | 2018-08-08 | 2020-02-18 | 한국가스안전공사 | Processing system for industrial gases comprising fluorine gas and method for treating fluorine gas using thereof |
| CN208917108U (en) * | 2018-08-30 | 2019-05-31 | 河北春蕾实业集团有限公司 | A kind of furfural high-efficient production line |
| CN212237659U (en) * | 2020-03-24 | 2020-12-29 | 济宁市恒联工程机械有限公司 | Novel straw biomass production device |
| CN216970918U (en) * | 2021-06-07 | 2022-07-15 | 肥城金塔酒精化工设备有限公司 | Furfural production raw material conveying and dedusting device |
Non-Patent Citations (2)
| Title |
|---|
| "粮食业务技术培训岗位培训教材", vol. 1, 31 July 1992, 中国商业出版社, pages: 95 * |
| 田冬梅: "工业通风与除尘", vol. 1, 28 February 2007, 煤炭工业出版社, pages: 136 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116101789A (en) * | 2023-04-12 | 2023-05-12 | 山东奥诺能源科技股份有限公司 | Pneumatic conveying cyclone discharging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102688847B (en) | Dry cassava raw material screening device | |
| CN216970918U (en) | Furfural production raw material conveying and dedusting device | |
| CN113291711A (en) | Furfural production raw material conveying and dust removing device and raw material purifying and conveying method | |
| CN207013435U (en) | Domestic solid garbage integrated treatment screening installation | |
| CN103785610A (en) | Full-sealed density sorting system for household garbage | |
| CN202570588U (en) | Screening plant for dried cassava raw materials | |
| CN207430453U (en) | A kind of pulverizer convenient for purifying and dedusting | |
| CN115141287B (en) | Method for preparing wheat starch and wheat gluten from back-road flour | |
| CN206073572U (en) | It is a kind of can the automatic drying machine of recovered material in real time | |
| CN213287190U (en) | Separation dust collector is used in concrete admixture production | |
| CN111085311B (en) | A wet material crushing process | |
| CN214021830U (en) | Cement ex-warehouse lump material screening rotary device | |
| CN212732534U (en) | Carbide slag edulcoration device | |
| CN209715342U (en) | An aluminum capacitor sorting production line | |
| CN215694739U (en) | Efficient continuous material conveying, doping, crushing and mixing system | |
| CN208261274U (en) | Feed Manufacturing stock grading cooling device | |
| CN217511931U (en) | Waterproof powder stirring dust collector | |
| CN219232621U (en) | Solid dry slag grinding device for coal-fired power plant | |
| CN219150385U (en) | Spiral classifier discharging device for mineral separation | |
| CN219942940U (en) | Slag discharge and collection system of vertical mill | |
| CN115304683B (en) | Wheat starch production system using later-stage powder as raw material | |
| CN220861618U (en) | Self-cleaning device for vertical mill central tube | |
| CN215586766U (en) | Machine-made sand and stone coarse aggregate cleaning device | |
| CN213700125U (en) | Humic acid grinding device | |
| CN221966382U (en) | Waste cotton recovery and continuous feeding and conveying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210824 |
|
| RJ01 | Rejection of invention patent application after publication |