CN212051143U - Deslagging system of powdered lime - Google Patents
Deslagging system of powdered lime Download PDFInfo
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- CN212051143U CN212051143U CN202020386326.3U CN202020386326U CN212051143U CN 212051143 U CN212051143 U CN 212051143U CN 202020386326 U CN202020386326 U CN 202020386326U CN 212051143 U CN212051143 U CN 212051143U
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Abstract
The utility model belongs to the technical field of calcium carbonate production and processing, specifically a deslagging system of powder lime, this system include pit feed bin, bucket carry machine, screening machine, digestion device, digestion shale shaker, meandering groove, filter unit, ageing unit, size mixing pond and connect gradually in proper order. Through the orderly arrangement of digestion device, curved chute, filter unit, ageing unit, mixing the thick liquid pond, make the thick liquid particle diameter after the slagging-off < 30um, D90=10um, the thick liquid particle diameter concentration is high, the carbonization reaction that the thick liquid participated in, and the calcium carbonate product particle diameter distribution that finally generates is even, and the particle diameter concentration is high.
Description
Technical Field
The utility model belongs to the technical field of calcium carbonate production and processing, concretely relates to deslagging system of powder lime.
Background
The traditional domestic lime slaking deslagging method has the advantages that most of raw materials are blocky lime, a slaking device matched with the blocky lime is selected, the blocky lime is low in slag content, simple single-stage equipment deslagging is only performed in the deslagging process, the grain size of slurry subjected to deslagging is large, the grain size distribution of calcium carbonate products subjected to slurry carbonization is uneven, the concentration degree is wide, the dispersibility and the flowability are poor, and the processability of subsequent plastic products is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the slag removal system for the powdered lime solves the problems that the powdered lime has high slag content, the particle size of calcium hydroxide slurry is large, the particle size distribution of calcium carbonate products after slurry carbonization is uneven, the concentration ratio is wide, the dispersibility is poor, the secondary agglomeration of particles is serious, and the flowability is poor, so that the processing performance of subsequent products is improved.
The utility model discloses a solve the scheme that above-mentioned technical problem adopted and be: the raw material screening and the slurry are respectively subjected to various slag removal modes of vibration, sedimentation and rotational flow, so that the slag removal precision is gradually improved, and the particle size of the calcium hydroxide slurry is ensured to be less than 30 mu m. The utility model discloses a deslagging system process flow for powdered lime is simple, raw materials lime is carried to the screening machine through the bucket elevator and is sieved, the powder is direct outward transported, lump material gets into the digestion device with water according to fixed ratio behind the accurate belt weigher of measurement, produce the calcium hydrate thick liquid, lean on the difference to flow to the digestion shale shaker and carry out mechanical vibration slagging-off, digestion shale shaker one end is connected the meandering groove, the other end is connected the slag bath, wherein the screen face thing gets into the slag bath, the thick liquid that undersize gets into the meandering groove and subsides the slagging-off, meandering groove bottom connection slag bath, the top is connected the coarse pulp pond, the thick liquid that gets into the coarse pulp pond, the thick liquid that again respectively passes through the shale shaker mechanical vibration slagging-off of two-stage different mesh numbers, be provided with the slag stuff pump between the two-stage vibration filter equipment, the thick liquid after the two-stage vibration slagging-off, the slurry grain diameter of the overflow port is less than 30um and flows into the slurry mixing tank, the slurry is pumped into the carbonization tower through the feeding slurry pump of the carbonization tower to carry out carbonization reaction after concentration and temperature regulation, and the center of the top of each slurry tank is provided with stirring at a fixed rotating speed, so that the uniformity and the fineness of the slurry are ensured. The method comprises the following specific steps:
the deslagging system of the powdered lime comprises a slag storage pit bin, a bucket elevator for transporting slag, a screening machine for preliminarily separating the slag, a slaking device for producing quicklime, a slaking vibrating screen, a curved chute, a filtering unit, an aging unit and a size mixing tank which are sequentially connected; the pit bin is connected with a bucket elevator, the bucket elevator is connected with a screening machine, the screening machine is connected with a digestion device, a digestion vibrating screen is arranged behind the digestion device, one path of the digestion vibrating screen is connected with a curved chute, the other path of the digestion vibrating screen is connected with a slag pool, a filtering unit is arranged behind the curved chute, and the filtering unit comprises a coarse pulp pool, a coarse pulp vibrating screen, a fine pulp pool and a fine pulp vibrating screen which are sequentially connected; the back of the filtering unit is connected with the aging unit, and the back of the aging unit is connected with the size mixing tank.
As mentioned above, a screening machine, a block bin and a belt scale are arranged between the bucket elevator and the digestion device in sequence and are used for controlling the amount of slag entering the digestion device.
One outlet of the screening machine is connected with the block bin, and the other outlet of the screening machine is connected with the powder bin, so that the preliminarily usable blocky lime material is screened out.
A belt weigher is arranged behind the block bin and connected with the slaking device, and the belt weigher controls lime material entering the slaking machine to prevent the lime material from being excessive.
The aging unit comprises a primary aging tank, a primary aging vibrating screen, a secondary aging tank, a cyclone and a tertiary aging tank which are sequentially connected, lime fully reacts and flows into a size mixing tank to be adjusted into raw lime slurry required by the subsequent process.
The upper end of the cyclone is connected to the three-stage aging tank, and the bottom end of the cyclone is connected to the slag tank.
As mentioned above, the top centers of the coarse pulp tank, the fine pulp tank, the primary aging tank, the secondary aging tank, the tertiary aging tank and the size mixing tank are provided with stirring devices, and then the slurry pumps are respectively arranged to provide power for the lime milk.
The utility model has the advantages that: the particle size of the slurry after deslagging is less than 30um, D90=10um, the particle size concentration of the slurry is high, the carbonization reaction participated by the slurry, and the finally generated calcium carbonate product has uniform particle size distribution, higher concentration, good dispersibility and high product fluidity, and can improve the processing performance of subsequent plastic products.
Drawings
FIG. 1 is a schematic view of a deslagging system for powdered lime:
the labels in the figure are: 1. a pit bin; 2. a bucket elevator; 3. screening machine; 4. a powder bin; 5. a block bin; 6. a belt scale; 7. a digestion unit; 8. digesting and vibrating the screen; 9. a meandering groove; 10. a coarse pulp tank; 11. a slurry pump; 12. coarse pulp vibrating screen; 13. a fine pulp tank; 15. fine pulp vibrating screen; 16. a primary aging tank; 18. a first-stage aging vibrating screen; 19. a second-stage aging tank; 21. a swirler; 22. a third-stage aging tank; 24. a pulp mixing tank; 26. stirring; 27. and (4) a slag pool.
Detailed Description
According to the attached figure 1 of the specification, a deslagging system of powdered lime comprises a pit bin 1 for storing slag, a bucket elevator 2 for transporting slag, a sieving machine 3 for primarily separating slag, a slaking device 7 for producing quicklime, a slaking vibrating screen 8, a curved chute 9, a filtering unit, an aging unit and a size mixing tank 24 which are sequentially connected; the pit bin is connected with a bucket elevator 2, the bucket elevator 2 is connected with a screening machine 3, the screening machine 3 is connected with a digestion device 7, a digestion vibrating screen 8 is arranged behind the digestion device 7, one path of the digestion vibrating screen 8 is connected with a curved chute 9, the other path of the digestion vibrating screen is connected with a slag pool 27, a filtering unit is arranged behind the curved chute 9, and the filtering unit is sequentially connected with a coarse pulp pool 10, a coarse pulp vibrating screen 12, a fine pulp pool 13 and a fine pulp vibrating screen 15; the back of the filtering unit is connected with the aging unit, and the back of the aging unit is connected with the size mixing tank. The aging unit is sequentially connected with a primary aging tank 18, a primary aging vibrating screen 18, a secondary aging tank 19, a cyclone 21 and a tertiary aging tank 22, lime is fully reacted and flows into a size mixing tank 24 to be adjusted into raw lime slurry required by the subsequent process.
The deslagging system can convey the raw material lime to the sieving machine 3 through the bucket elevator 2 for sieving, the powder enters the powder bin 4 for direct outward transportation, the lump material enters the lump bin 5, the lump material enters the slaking device 7 according to a fixed proportion after being metered by the accurately metered belt scale 6, calcium hydroxide slurry is generated and flows to the slaking vibrating screen 8 by means of position difference for mechanical vibration deslagging, the screen surface material of the slaking vibrating screen 8 enters the slag pool 27, the undersize slurry enters the curved chute 9 for settling deslagging, the bottom of the curved chute 9 is connected with the slag pool 27, the top of the curved chute 9 is connected with the coarse slurry pool 10, the slurry entering the coarse slurry pool 10 is subjected to mechanical vibration deslagging through the coarse slurry vibrating screen 12 and the fine slurry vibrating screen 15 with different meshes in two stages respectively, and then is subjected to two-stage aging, namely the primary aging tank 18, the primary aging vibrating screen 18 and the secondary tank 19 enter the cyclone, and the separated slag is conveyed to the slag pool 27 through the bottom flow port of the cyclone 21, high-quality slurry is sent to mixing tank 24 from swirler 21 top overflow mouth, and the slurry particle diameter of overflow mouth is < 30um, and the slurry in mixing tank 24 is thrown into the carbonators through carbonators material loading sediment stuff pump 11 after concentration and temperature control and is carried out the carbonization reaction, and every slurry tank top central authorities are equipped with the stirring 26 of fixed rotational speed, guarantee the homogeneity and the fineness of slurry. The calcium carbonate product finally generated by the carbonization reaction in which the slurry participates has uniform particle size distribution, higher concentration, good dispersibility and improved product fluidity, and the processability of subsequent plastic products is improved.
Claims (6)
1. A deslagging system of powder lime is characterized in that the system comprises a pit bin, a bucket elevator, a screening machine, a digestion device, a digestion vibrating screen, a curved chute, a filtering unit, an aging unit and a size mixing tank which are sequentially connected, wherein the pit bin is connected with the bucket elevator, the bucket elevator is connected with the screening machine, the screening machine is connected with the digestion device, the digestion vibrating screen is arranged behind the digestion device, one path of the digestion vibrating screen is connected with the curved chute, the other path of the digestion vibrating screen is connected with a slag tank, the filtering unit is arranged behind the curved chute and comprises a coarse pulp tank, a coarse pulp vibrating screen, a fine pulp tank and a fine pulp vibrating screen which are sequentially connected; the back of the filtering unit is connected with the aging unit, and the back of the aging unit is connected with the size mixing tank.
2. The system of claim 1, wherein the system further comprises: a screening machine, a block bin and a belt scale are arranged between the bucket elevator and the digestion device in sequence.
3. The system of claim 1, wherein the system further comprises: one outlet of the screening machine is connected with the block bin, and the other outlet of the screening machine is connected with the powder bin.
4. The system of claim 1, wherein the system further comprises: a belt scale is arranged behind the block bin and connected with the digestion device.
5. The system of claim 1, wherein the system further comprises: the aging unit comprises a primary aging tank, a primary aging vibrating screen, a secondary aging tank, a cyclone and a tertiary aging tank which are sequentially connected.
6. The system of claim 1, wherein the system further comprises: the upper end of the cyclone is connected to the three-stage aging tank, and the bottom end of the cyclone is connected to the slag tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386326.3U CN212051143U (en) | 2020-03-24 | 2020-03-24 | Deslagging system of powdered lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386326.3U CN212051143U (en) | 2020-03-24 | 2020-03-24 | Deslagging system of powdered lime |
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| Publication Number | Publication Date |
|---|---|
| CN212051143U true CN212051143U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020386326.3U Active CN212051143U (en) | 2020-03-24 | 2020-03-24 | Deslagging system of powdered lime |
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| Country | Link |
|---|---|
| CN (1) | CN212051143U (en) |
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2020
- 2020-03-24 CN CN202020386326.3U patent/CN212051143U/en active Active
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