CN110342466A - A kind of production technology of bleaching powder - Google Patents
A kind of production technology of bleaching powder Download PDFInfo
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- CN110342466A CN110342466A CN201910552480.5A CN201910552480A CN110342466A CN 110342466 A CN110342466 A CN 110342466A CN 201910552480 A CN201910552480 A CN 201910552480A CN 110342466 A CN110342466 A CN 110342466A
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- Prior art keywords
- calcium hydroxide
- bleaching powder
- powder
- tail gas
- production technology
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/064—Hypochlorites of alkaline-earth metals
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of production technologies of bleaching powder, specifically includes the following steps: step 1: selection quick lime raw material, quick lime is subjected to break process using crusher, treated, and hydrated lime particle is placed on the digestion process acquisition calcium hydroxide for adding water to carry out quick lime in reactor tank, ageing drying and other treatment is carried out to the calcium hydroxide of acquisition and obtains calcium hydroxide block, milling processing is carried out using calcium hydroxide block of the grinder to acquisition, and is stored in calcium hydroxide bunker；Step 2: the calcium hydroxide powder in above-mentioned calcium hydroxide bunker is transported in bleaching powder machine by screw conveyor, at the same by Chlorine Buffer Vessel by the chlorine gas transfer of needs into bleaching powder machine；Step 3: carrying out packaging by Automatic weighing and packaging machine for above-mentioned acquisition bleaching powder and obtain bleaching powder finished product, and the tail gas containing chlorine of above-mentioned generation is produced byproduct bleaching liquid by sprayer-washer and tail gas absorber pond.
Description
Technical field
Invention is related to bleaching powder production technical field, specially a kind of production technology of bleaching powder.
Background technique
Bleaching powder is one that chlorine is balanced in one of traditional bleaching agent and disinfection sanitizer and chemical industry for making chlorine and alkali industry
Conventional products.Bleaching powder is easy to use, cheap；Production process technology is uncomplicated, of less demanding to purity of chlorine gas feeding, using model
It encloses extensively.Bleaching powder production technology is using lime and chlorine as raw material, and lime is reacted after digesting with chlorine.And lime exists
A large amount of calcium hydroxide dust is generated in digestion process, can generate some calcium hydroxide dust during calcium hydroxide grinding, it is existing
In technology to the calcium hydroxide dust depositing dust of generation eliminate and tail gas absorption for the purpose of, can not achieve and offset the recycling of lime powder again
It utilizes, so that there is waste of resource；A small amount of unreacted is taken away again when the water vapour discharge that chlorination reaction process generates
Chlorine is discharged into air, no after being purified by way of exhaust-gas treatment to a small amount of unreacted chlorine in the prior art
Reasonably a small amount of unreacted chlorine can rationally be utilized；And the bleaching powder dust that cannot be generated when finished product bleaching powder is packed
It is recycled.
In conclusion the production technology of current bleaching powder, still remain that the waste to resource is serious, cannot reasonably follow
Ring utilizes unemployed material and the problem undesirable to the treatment effect of pollutant.
Summary of the invention
The production technology for being designed to provide a kind of bleaching powder of invention, to solve to propose at present in above-mentioned background technique
The production technology of bleaching powder, still remain the waste to resource is serious, cannot reasonably recycle unemployed material and
The problem undesirable to the treatment effect of pollutant.
To achieve the above object, invention provides the following technical solutions: a kind of production technology of bleaching powder specifically includes following
Step:
Step 1: quick lime is carried out break process using crusher, treated calcium hydroxide by selection quick lime raw material
Grain is placed in reactor tank plus water carries out the digestion process acquisition calcium hydroxide of quick lime, carries out ageing desiccation to the calcium hydroxide of acquisition
Processing obtains calcium hydroxide block, carries out milling processing using calcium hydroxide block of the grinder to acquisition, and be stored in calcium hydroxide bunker；
Step 2: the calcium hydroxide powder in above-mentioned calcium hydroxide bunker is transported in bleaching powder machine by screw conveyor, together
When by Chlorine Buffer Vessel by the chlorine gas transfer of needs into bleaching powder machine, the calcium hydroxide powder allowed in bleaching powder machine and the chlorine being passed through
It comes into full contact with reaction and obtains bleaching powder and the tail gas containing chlorine；
Step 3: carrying out packaging by Automatic weighing and packaging machine for above-mentioned acquisition bleaching powder and obtain bleaching powder finished product, wherein
The bleaching powder dust that Automatic weighing and packaging machine generates when working collects a part of bleaching powder by third bag filter, will be above-mentioned
After the tail gas containing chlorine generated is handled by sprayer-washer, produced through the tail gas absorber pond containing quick lime
Byproduct bleaching liquid.
Preferably, the unemployed tail gas containing chlorine of the sprayer-washer discharge passes through the tail containing quick lime
Aspiration tower pond recycles.
Preferably, the tail gas containing chlorine not utilized by the tail gas absorber is transported in exhaust tube through depositing dust spray equipment
Processing.
Preferably, further include in step 1 digestion process generate calcium hydroxide dust by the first bag filter processing,
In the first bag filter collect calcium hydroxide powder be sent to ageing process processing.
Preferably, further include in step 1 milling processing generate calcium hydroxide dust by the second bag filter processing,
In the second bag filter collect calcium hydroxide powder be sent to calcium hydroxide bunker.
Preferably, after being filtered by first bag filter, the second bag filter and third bag filter
Exhaust gas be transported in exhaust tube by depositing dust spray column carry out depositing dust processing.
Preferably, the bottom of the depositing dust spray column is connected with recycle liquid pump.
Preferably, crusher described in step 1 is jaw crusher, and quick lime granularity is between 50~80mm after being crushed.
Preferably, ageing drying time described in step 1 is 3~4 days.
Compared with prior art, advantageous effect of the invention is:
1, the production technology of the bleaching powder collects the calcium hydroxide generated in digestion process by the first bag filter of setting
Powder is then sent in ageing process and is utilized, and realizes and recycles, the effect to economize on resources.
2, the production technology of the bleaching powder collects the calcium hydroxide generated in milling process by the second bag filter of setting
Powder is then sent to calcium hydroxide bunker, realizes and recycles, the effect to economize on resources.
3, unemployed tail gas containing chlorine is sent into tail gas by setting sprayer-washer and inhaled by the production technology of the bleaching powder
It receives in tower pond, the processing to chlorine contained exhaust gas on the one hand may be implemented, another party will pass through to be added into tail gas absorber pond
Quick lime prepares byproduct bleaching liquid, realizes and gives up the recycling of tail gas to containing chlorine, and tail gas absorber is arranged and washes to spray
It washs the unemployed chlorine that contains in device and tail gas absorber pond to be handled, treated at this time, and tail gas cleannes are very high
, handled using subsequent depositing dust spray column, can effectively improve vent gas treatment effect.
4, the production technology of the bleaching powder produces during collecting Automatic weighing and packaging machine by setting third bag filter
Raw bleaching powder dust realizes recycling, the effect to economize on resources.
5, the production technology of the bleaching powder passes through the first bag filter, the second bag filter, third bag filter
Treated, and dust exhaust gas is transported in exhaust tube through the further depositing dust purified treatment of depositing dust spray column progress, is improved net
Change treatment effect.
Detailed description of the invention
Fig. 1 is a kind of technological process of production schematic diagram of bleaching powder.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, invention provides a kind of technical solution: a kind of production technology of bleaching powder, specifically includes the following steps:
Step 1: quick lime is carried out break process using crusher, treated calcium hydroxide by selection quick lime raw material
Grain is placed in reactor tank plus water carries out the digestion process acquisition calcium hydroxide of quick lime, carries out ageing desiccation to the calcium hydroxide of acquisition
Processing obtains calcium hydroxide block, carries out milling processing using calcium hydroxide block of the grinder to acquisition, and be stored in calcium hydroxide bunker；
Outsourcing quick lime is sent into jaw crusher, and after being crushed then granularity is sent between 50~80mm with bucket elevator
Enter quick lime bunker, three-level digester is added by spiral metering conveyor, is contacted with water and digestion reaction: CaO+H occurs2O=
Ca(OH)2；Postdigestive calcium hydroxide enters aging bunker, and digestion time is 3~4 days, it is therefore an objective to make water full and uniform with quick lime
Reaction.Then it is sent by screw conveyor to flour mill and is milled, the calcium hydroxide after milling is transported to drift by bucket elevator
In the calcium hydroxide bunker on powder machine top.
Step 2: the calcium hydroxide powder in above-mentioned calcium hydroxide bunker is transported in bleaching powder machine by screw conveyor, together
When by Chlorine Buffer Vessel by the chlorine gas transfer of needs into bleaching powder machine, the calcium hydroxide powder allowed in bleaching powder machine and the chlorine being passed through
It comes into full contact with reaction and obtains bleaching powder and the tail gas containing chlorine；
Bleaching powder production process is to produce bleaching powder product using chlorine, calcium hydroxide as raw material.Niter in calcium hydroxide bunker
Ash is sent respectively by duct type screw conveyor to four sets of bleaching powder machines through vibrating bunker.Bleaching powder machine is divided into four sections, and calcium hydroxide is from upper
Detour blanking section by section is arrived down, the allocated adjusting control flow of tail chlorine after chlorine is liquefied by caustic soda subsidiary factory liquid chlorine section enters drift
Powder machine, calcium hydroxide are come into full contact with chlorine, and heat-producing chemical reaction: 2Ca (OH)2+2Cl2=Ca (OCl)2+
CaCl2·2H2O。
Step 3: carrying out packaging by Automatic weighing and packaging machine for above-mentioned acquisition bleaching powder and obtain bleaching powder finished product, wherein
The bleaching powder dust that Automatic weighing and packaging machine generates when working collects a part of bleaching powder by third bag filter, will be above-mentioned
After the tail gas containing chlorine generated is handled by sprayer-washer, produced through the tail gas absorber pond containing quick lime
Byproduct bleaching liquid.
In the present embodiment, the unemployed tail gas containing chlorine of the sprayer-washer discharge is by containing quick lime
Tail gas absorber pond recycle.
In the present embodiment, it is not transported in exhaust tube by the tail gas containing chlorine that the tail gas absorber utilizes and is sprayed through depositing dust
Device processing.
It further include the calcium hydroxide dust that generates of digestion process in the present embodiment, in step 1 by the first bag filter
Reason, wherein the calcium hydroxide powder that the first bag filter is collected is sent to ageing process processing.
It further include the calcium hydroxide dust that generates of milling processing in the present embodiment, in step 1 by the second bag filter
Reason, wherein the calcium hydroxide powder that the second bag filter is collected is sent to calcium hydroxide bunker.
In the present embodiment, pass through first bag filter, the second bag filter and third bag filter mistake
Exhaust gas after filter, which is transported in exhaust tube, carries out depositing dust processing by depositing dust spray column.
In the present embodiment, the bottom of the depositing dust spray column is connected with recycle liquid pump.
Advantageous effect of the invention is: the production technology of the bleaching powder, is collected and was digested by the first bag filter of setting
The calcium hydroxide powder generated in journey, is then sent in ageing process and is utilized, and realizes and recycles, the effect to economize on resources
Fruit.The production technology of the bleaching powder collects the calcium hydroxide powder generated in milling process by the second bag filter of setting, so
After be transported to calcium hydroxide bunker, realize and recycle, the effect to economize on resources.
Unemployed tail gas containing chlorine is sent into tail gas absorption by setting sprayer-washer by the production technology of the bleaching powder
In tower pond, the processing to chlorine contained exhaust gas on the one hand may be implemented, another party will pass through, and life is added into tail gas absorber pond
Lime prepares byproduct bleaching liquid, realizes and gives up the recycling of tail gas to containing chlorine, and tail gas absorber is arranged to spray washing
Unemployed in device and tail gas absorber pond to be handled containing chlorine, treated at this time, and tail gas cleannes are very high
, handled using subsequent depositing dust spray column, can effectively improve vent gas treatment effect.The production work of the bleaching powder
Skill collects the bleaching powder dust generated during Automatic weighing and packaging machine by setting third bag filter, realizes recycling benefit
With the effect to economize on resources.The production technology of the bleaching powder passes through the first bag filter, the second bag filter, third cloth
Treated that dust exhaust gas is transported to is carried out at further depositing dust purification in exhaust tube by depositing dust spray column for bag dust collector
Reason improves purified treatment effect.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of production technology of bleaching powder, it is characterised in that: specifically includes the following steps:
Step 1: quick lime is carried out break process using crusher, treated, and hydrated lime particle is put by selection quick lime raw material
It sets in reactor tank plus water carries out the digestion process acquisition calcium hydroxide of quick lime, ageing drying and other treatment is carried out to the calcium hydroxide of acquisition
Calcium hydroxide block is obtained, carries out milling processing using calcium hydroxide block of the grinder to acquisition, and be stored in calcium hydroxide bunker；
Step 2: the calcium hydroxide powder in above-mentioned calcium hydroxide bunker is transported in bleaching powder machine by screw conveyor, is led to simultaneously
Chlorine Buffer Vessel is crossed by the chlorine gas transfer of needs into bleaching powder machine, the calcium hydroxide powder allowed in bleaching powder machine and the chlorine being passed through are abundant
Haptoreaction obtains bleaching powder and the tail gas containing chlorine；
Step 3: above-mentioned acquisition bleaching powder is subjected to packaging by Automatic weighing and packaging machine and obtains bleaching powder finished product, wherein automatically
The bleaching powder dust that weighing and bagging machine generates when working collects a part of bleaching powder by third bag filter, by above-mentioned generation
The tail gas containing chlorine handled by sprayer-washer after, through containing quick lime tail gas absorber pond produce by-product
Product bleaching liquid.
2. a kind of production technology of bleaching powder as described in claim 1, it is characterised in that: the sprayer-washer discharge is not
The tail gas containing chlorine being utilized is recycled by the tail gas absorber pond containing quick lime.
3. a kind of production technology of bleaching powder as claimed in claim 2, it is characterised in that: do not utilized by the tail gas absorber
Tail gas containing chlorine be transported in exhaust tube and handled through depositing dust spray equipment.
4. a kind of production technology of bleaching powder as described in claim 1, it is characterised in that: further include digestion process in step 1
The calcium hydroxide dust of generation is handled by the first bag filter, wherein the calcium hydroxide powder that the first bag filter is collected is sent
To ageing process processing.
5. a kind of production technology of bleaching powder as described in claim 1, it is characterised in that: further include milling processing in step 1
The calcium hydroxide dust of generation is handled by the second bag filter, wherein the calcium hydroxide powder that the second bag filter is collected is sent
To calcium hydroxide bunker.
6. a kind of production technology of bleaching powder as described in claim 4 or 5, it is characterised in that: removed by first cloth bag
Dirt device, the second bag filter and the filtered exhaust gas of third bag filter are transported in exhaust tube to be sprayed by depositing dust
Tower carries out depositing dust processing.
7. a kind of production technology of bleaching powder as claimed in claim 6, it is characterised in that: the bottom of the depositing dust spray column connects
It is connected to recycle liquid pump.
8. a kind of production technology of bleaching powder as described in claim 1, it is characterised in that: crusher described in step 1 is the blade of a sword
Formula crusher, quick lime granularity is between 50~80mm after being crushed.
9. a kind of production technology of bleaching powder as described in claim 1, it is characterised in that: when being aged desiccation described in step 1
Between be 3~4 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552480.5A CN110342466A (en) | 2019-06-25 | 2019-06-25 | A kind of production technology of bleaching powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552480.5A CN110342466A (en) | 2019-06-25 | 2019-06-25 | A kind of production technology of bleaching powder |
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| Publication Number | Publication Date |
|---|---|
| CN110342466A true CN110342466A (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910552480.5A Pending CN110342466A (en) | 2019-06-25 | 2019-06-25 | A kind of production technology of bleaching powder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204159176U (en) * | 2014-10-22 | 2015-02-18 | 张世军 | Calcium hypochlorite production environmental protection retracting device |
| CN105236355A (en) * | 2015-09-25 | 2016-01-13 | 广西大学 | Clean and environmental-protection bleaching powder production process |
| CN205556467U (en) * | 2016-04-07 | 2016-09-07 | 荆门市锦科钙业股份有限公司 | Dust recovery system of slaked lime production line |
| CN109364711A (en) * | 2018-11-14 | 2019-02-22 | 南京中电环保科技有限公司 | A kind of flue gas system for the ultra-clean processing of cement kiln tail gas |
-
2019
- 2019-06-25 CN CN201910552480.5A patent/CN110342466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204159176U (en) * | 2014-10-22 | 2015-02-18 | 张世军 | Calcium hypochlorite production environmental protection retracting device |
| CN105236355A (en) * | 2015-09-25 | 2016-01-13 | 广西大学 | Clean and environmental-protection bleaching powder production process |
| CN205556467U (en) * | 2016-04-07 | 2016-09-07 | 荆门市锦科钙业股份有限公司 | Dust recovery system of slaked lime production line |
| CN109364711A (en) * | 2018-11-14 | 2019-02-22 | 南京中电环保科技有限公司 | A kind of flue gas system for the ultra-clean processing of cement kiln tail gas |
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Application publication date: 20191018 |
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