CN212141542U

CN212141542U - Device is eluriated to crystallization material

Info

Publication number: CN212141542U
Application number: CN202020625899.7U
Authority: CN
Inventors: 余春华; 陶讯虎; 吴利华; 颜崇威
Original assignee: GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Current assignee: GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-15
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a crystallizing material elutriation device, which comprises a container and a device for receiving and separating mother liquor and redissolving solution and carrying out primary and secondary elutriation on crystals in the container; a crystallization input port and a crystallization mixture output port are arranged on the container; the input port of the first-stage elutriation device is used for receiving and separating mother liquor, and the output port of the first-stage elutriation device is communicated with the interior of the container; the input port of the second-stage elutriation device is used for receiving the redissolved solution, and the output port of the second-stage elutriation device is communicated with the inside of the container, the effect is as follows: firstly, mother liquor (solution separated by a centrifuge) is utilized, the mother liquor has temperature difference with crystallized materials, and the mother liquor is mixed to dissolve fine crystals, so that the uniformity of the crystal specification is ensured, and the separation effect of the centrifuge is not influenced by the fine crystallized materials, so that the working efficiency and the dehydration effect of the centrifuge are improved. Secondly, adopt second grade elutriation device to purify the crystallization, ensure that the crystal quality of output is higher.

Description

Device is eluriated to crystallization material

Technical Field

The utility model relates to a crystallization purification device, more specifically say, it relates to a device is eluriated to crystallization material.

Background

In practical application, the lower the ratio of small crystals to total crystals, the more pure the normal crystals are, the more popular the crystals with higher purity are, but because the small crystals and the normal crystals are often mixed together, no method for properly separating the small crystals is found in the industry at present.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a device is eluriated to crystallization material has the advantage that improves off-the-shelf crystallization purity.

The above technical purpose of the present invention can be achieved by the following technical solutions: an elutriation device for crystallized materials, comprising a container for receiving crystals and outputting a mixture of crystals, a centrifuge for separating crystals and mother liquor in the mixture of crystals and delivering the mother liquor to a primary elutriation device, and a primary elutriation device for receiving the mother liquor and elutriating crystals in the container; a crystallization input port and a crystallization mixture output port are formed in the container, and the horizontal position of the crystallization input port is higher than that of the crystallization mixture output port; an input port, a separation crystallization material output port and a mother liquor output port are formed in the centrifugal machine; the input port of the centrifuge is communicated with the output port of the crystallization mixture of the container; a mother liquid output port of the centrifuge is communicated with an input port of the primary elutriation device; the output port of the first-stage elutriation device is communicated with the interior of the container.

Optionally, an inner barrel is further arranged in the container, the inner barrel is arranged along the height direction of the container, liquid outlet holes are uniformly formed in the side wall of the inner barrel, and exhaust holes are formed in the top of the inner barrel.

Optionally, the method further includes:

the redissolving device is used for sending the redissolving solution to the secondary elutriation device;

a secondary elutriation means for elutriating crystals within the vessel using the redissolved solution;

and the input port of the secondary elutriation device is connected with the redissolution device, and the output port of the secondary elutriation device is communicated with the interior of the container.

Optionally, the horizontal position of the output port of the first-stage elutriation device is higher than the horizontal position of the output port of the second-stage elutriation device.

Optionally, the redissolution device comprises a water pump, a redissolution barrel and a connecting pipeline; two ends of the connecting pipeline are respectively connected with the input ports of the re-dissolving barrel and the secondary elutriation device; the water pump is arranged on the connecting pipeline.

Optionally, the cross section of the lower end of the container is in an inverted cone shape.

Optionally, the first-stage elutriation device is a perforated pipe water distributor.

Optionally, the second-stage elutriation device is a perforated pipe water distributor.

To sum up, the utility model discloses following beneficial effect has:

firstly, by utilizing the characteristics that a redissolution solution (a solution formed by putting precipitated crystals into purified water) has higher saturation and normal-size crystals are not easy to redissolve, fine crystals are redissolved, and normal-size crystal material particles are more uniform.

Secondly, adopt second grade elutriation device to carry out purification again to the crystallization, ensure that the crystal quality of output is higher.

Thirdly, a centrifugal machine is communicated with a crystallization mixture output port, then the centrifugal machine is used for separating out crystals and mother liquor, then the mother liquor is introduced into a first-stage elutriation device, then the crystals are purified, and the whole process utilizes the saturation degree of the mother liquor, so that the small crystals are easier to dissolve back.

And fourthly, mother liquor (solution separated by the centrifugal machine) is utilized, the mother liquor is considered to play a role in redissolving fine crystals due to temperature difference with the crystallized materials after being mixed, the uniformity of the crystallization specification is ensured, the separation effect of the centrifugal machine is not influenced due to the fine crystallized materials, and therefore the working efficiency and the dehydration effect of the centrifugal machine are improved.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

In the figure: 1. a container; 101. a crystallization input port; 102. a crystallization mixture outlet; 2. a first-stage elutriation device; 3. an inner barrel; 301. a liquid outlet hole; 302. an exhaust hole; 4. a secondary elutriation device; 5. a redissolution device; 501. a water pump; 502. connecting a pipeline; 503. a re-dissolving barrel; 6. a centrifugal machine.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

The present application provides an elutriation device for crystallized materials, as shown in fig. 1, which comprises a container 1 for receiving crystals and outputting a crystallization mixture and a centrifuge for separating crystals and mother liquor in the crystallization mixture and delivering the mother liquor to a primary elutriation device 2. The container 1 is provided with a crystallization input port 101 and a crystallization mixture output port 102, and the horizontal position of the crystallization input port 101 is higher than that of the crystallization mixture output port 102. A first-stage elutriation device 2 is arranged in the container 1, and an input port, a crystallization output port and a mother liquor output port are arranged on a centrifugal machine 6. The input port of the centrifuge 6 is communicated with the output port 102 of the crystallization mixture, the mother liquor output port of the centrifuge 6 is communicated with the input port of the primary elutriation device 2, and the output port of the primary elutriation device 2 is communicated with the inside of the container 1.

The utility model provides a device is eluriated to crystallization material is used for elutriating the crystallization, because the crystallization before getting into this device can appear normal size crystallization and tiny crystallization at the separation out in-process, leads to the crystallization of appearing inhomogeneous, and the effect of this device elutriates the redissolution for the tiny crystallization that gets into this device, improves the purity of finished product crystallization as far as possible. The unpurified crystals fall from the crystallization inlet 101 into the vessel 1, and since the crystallization inlet 101 of the vessel 1 is higher than the crystallization mixture outlet 102, the crystals enter the crystallization inlet 101 and fall by gravity to the crystallization mixture outlet 102, and the primary elutriation means 2 elutes the unpurified crystals during the fall of the crystals in the vessel 1. When the device is just started to operate, a certain amount of pure saturated solution needs to be added into the device from a crystallization input port 101, then a crystallization mixture output port 102 outputs water and a crystallization mixture, the crystallization mixture is subjected to centrifugal motion of a centrifugal machine 6 to separate crystals and mother liquor, the mother liquor is input into a primary elutriation device 2, and then the crystals are subjected to elutriation treatment by the primary elutriation device 2. And the purified crystals in the centrifuge 6 are output from a crystal output port of the centrifuge 6. Since fine crystals are redissolved in the mother liquor, the mother liquor is a saturated solution, and the unpurified crystals fall in the container 1 in a very short time, when the primary elutriation device 2 elutes the unpurified crystals, the crystals with normal size are difficult to redissolve in the mother liquor due to saturation and contact time, and the small crystals are redissolved in the mother liquor, so that most of the crystals discharged from the crystal mixture output port 102 are crystals with normal size, and then the crystal mixture combined with the crystals is output from the mixture output port 102 at this time.

In some embodiments, the first-stage elutriation device 2 is a perforated water distributor, and the perforated water distributor sprays toward the inner side wall of the container 1, so that the crystals fall by gravity when entering the container 1, the perforated water distributor sprays toward the crystals, and the contact area between the mother liquor and the crystals can be increased because the perforated water distributor distributes water uniformly on the working surface.

Optionally, an inner cylinder 3 is further provided in the container 1, and the inner cylinder 3 is provided along the height direction of the container 1. In some embodiments, the inner wall of the container 1 is cylindrical, liquid outlet holes 301 are uniformly formed in the side wall of the inner cylinder 3, crystals slide down along the side wall of the inner cylinder 3, the top of the inner cylinder 3 is provided with an exhaust hole 302, the inner cylinder 3 is arranged on the central axis of the container 1, when the crystals slide down along the side wall of the inner cylinder 3, and mother liquor sprayed by the elutriation device 2 sputters from the liquid outlet holes 301 to the outside of the inner cylinder 3 in the inner cylinder 3 to be elutriated in combination with mixed crystals, so that the contact time between the mother liquor and the crystals is short, and the elutriation efficiency is higher.

Further, the device also comprises a redissolution device 5 for conveying redissolution solution to the secondary elutriation device 4; a secondary elutriation means 4 for elutriating crystals within the vessel 1 using the redissolved solution; the input port of the second-stage elutriation device 4 is connected with the redissolution device 5, and the output port of the second-stage elutriation device 4 is communicated with the interior of the container 1. The re-dissolving device 5 comprises a water pump 501, a re-dissolving barrel 503 and a connecting pipeline 502; the connecting pipeline 502 is connected with the input ports of the redissolution barrel 503 and the secondary elutriation device 4; the water pump 501 is disposed on the connection pipe 502. The function of the redissolution tank 503 is to add water and an appropriate amount of crystals that have been separated from the centrifuge, so that the solution in the redissolution tank becomes a saturated solution, referred to as the redissolution solution. The crystallization mixture output port 102 of this embodiment is called a crystallization mixture output port 102, because it can output a mixed solution of mother liquor, a redissolution and crystals. This application still is provided with and is used for using redissolution solution is right the device 4 is eluriated to second grade that crystallization in the container 1 was eluriated, the input port of device 4 is eluriated to second grade is used for inputting redissolution, the delivery outlet and the container 1 inside of device 4 are eluriated to second grade are linked together, redissolution's saturation is enough high, device 4 is eluriated to second grade is used for introducing redissolution and elutriates the crystallization, device 4 is elutriated to second grade's effect is higher for guaranteeing the purity of crystallization, because redissolution's saturation is higher, in-process of carrying out the secondary elutriation to the crystallization, only the small crystal redissolution of fractional part is in the solution, then the output of this moment from mixture output port 102 is mother liquor, redissolution and crystallization mixture that the crystallization combines. And the centrifuge 6 separates the crystallized mixture, so that the separated primary mother liquor enters the primary elutriation device 2 again. In some embodiments, the secondary elutriation device 4 is also a perforated water distributor, and the effect is the same as above.

Further, the horizontal position of the outlet of the primary elutriation device 2 is higher than that of the outlet of the secondary elutriation device 4. The crystals are subjected to elutriation in the first-stage elutriation device 2 and then to elutriation in the second-stage elutriation device 4.

Alternatively, the lower end of the vessel 1 is of an inverted cone in cross-section, and the crystallization mixture outlet 102 is arranged at the corner of the inverted cone, and the inverted cone allows the liquid in the vessel 1 to flow out of the crystallization mixture outlet 102 into the centrifuge 6 more quickly.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An elutriation device for crystallized materials, which is characterized by comprising a container for receiving crystals and outputting a crystallization mixture, a centrifuge for separating the crystals and a mother liquor in the crystallization mixture and conveying the mother liquor to a primary elutriation device, and the primary elutriation device for receiving the mother liquor and elutriating the crystals in the container; a crystallization input port and a crystallization mixture output port are formed in the container, and the horizontal position of the crystallization input port is higher than that of the crystallization mixture output port; an input port, a separation crystallization material output port and a mother liquor output port are formed in the centrifugal machine; the input port of the centrifuge is communicated with the output port of the crystallization mixture of the container; a mother liquid output port of the centrifuge is communicated with an input port of the primary elutriation device; the output port of the first-stage elutriation device is communicated with the interior of the container.

2. The crystalline material elutriation device as claimed in claim 1, wherein an inner barrel is further arranged in the container, the inner barrel is arranged along the height direction of the container, liquid outlet holes are uniformly formed in the side wall of the inner barrel, and an exhaust hole is formed in the top of the inner barrel.

3. The crystalline material elutriation device as claimed in claim 1, further comprising:

4. The crystalline material elutriation device as claimed in claim 3, wherein the level of the outlet of the primary elutriation device is higher than the level of the outlet of the secondary elutriation device.

5. The crystalline material elutriation device as claimed in claim 4, wherein the redissolving device comprises a water pump, a redissolving barrel and a connecting pipeline; two ends of the connecting pipeline are respectively connected with the input ports of the re-dissolving barrel and the secondary elutriation device; the water pump is arranged on the connecting pipeline.

6. The crystalline material elutriation device as claimed in claim 1, wherein the lower end portion of the container is reverse-tapered in cross section.

7. The crystalline material elutriation device as claimed in claim 1, wherein the primary elutriation device is a perforated water distributor.

8. The crystalline material elutriation device as claimed in claim 4, wherein the secondary elutriation device is a perforated pipe water distributor.