CN219290648U

CN219290648U - Sodium bicarbonate continuous crystallizer

Info

Publication number: CN219290648U
Application number: CN202223380196.0U
Authority: CN
Inventors: 解凤苗; 张其忠; 郭蔡乐; 杨品; 张贵; 韩辉
Original assignee: Anhui Haihua Technology Group Co ltd
Current assignee: Anhui Haihua Technology Group Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-07-04
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a sodium bicarbonate continuous crystallizer which comprises a crystallization tank, wherein the crystallization tank is a transversely arranged tank body, a feed pipe is arranged at one end of the crystallization tank, a discharge pipe is arranged at the other end of the crystallization tank, a plurality of cooling pipes used for cooling liquid to flow are arranged in the crystallization tank, scraping plates for scraping crystal particles back and forth along the direction of the cooling pipes are arranged in the crystallization tank, a discharge chute is arranged at the bottom of the tank body, a discharge pipe is arranged at one side of the bottom of the tank body, and a packing auger conveying shaft used for conveying the crystal particles to the discharge pipe is arranged in the discharge chute. The crystal particles on the surface of the cooling pipe can be scraped in time by utilizing the back-and-forth movement of the scraping plate, so that the crystal particles fall into the discharge chute at the bottom, and the overall crystallization efficiency is improved; the utility model overcomes the defects of the prior art, has reasonable design and compact structure, and has higher social use value and application prospect.

Description

Sodium bicarbonate continuous crystallizer

Technical Field

The utility model relates to the technical field of chemical industry, in particular to a sodium bicarbonate continuous crystallizer.

Background

Sodium bicarbonate (sodium thiosulfate) is mainly used as a fixer in the photographic industry, as a reducing agent for dichromate during tanning, as a neutralizer for nitrogen-containing tail gases, as a mordant, as a bleaching agent for wheat straw and wool, and as a dechlorinating agent during pulp bleaching.

Crystallization is a common basic chemical production process, the production result of chemical products is embodied in the form of crystal particles, the production modes of the crystals are different according to different physical properties of the products, and cooling crystallization, evaporation crystallization and reaction crystallization are common. The continuous crystallizer is a production device which can provide continuous crystallization for enterprises compared with the traditional single-tank intermittent crystallization;

the inventor finds that the existing continuous crystallizer can continuously crystallize in the process of producing sodium bicarbonate, but still has the problem that crystallization efficiency is poor due to untimely scraping of crystallization particles, so that the continuous crystallization efficiency is influenced, and the contact probability of a traditional cooling pipe and materials is low due to the design of a cooling mechanism, so that the integral continuous crystallization efficiency is low.

Therefore, in view of the above, the present utility model provides a continuous sodium bicarbonate crystallizer for achieving the purpose of having more practical value by taking hold of the experience of the design development and actual production in the related industry for many years and researching and improving the existing structure and the defects.

Disclosure of Invention

In order to solve the problems that in the background art, although the existing continuous crystallizer can continuously crystallize, the problem that crystallization efficiency is poor due to untimely scraping of crystallization particles still occurs, continuous crystallization efficiency is affected, and the problem that the whole continuous crystallization efficiency is low due to low contact probability of a traditional cooling pipe and materials due to the design of a cooling mechanism is solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a sodium bicarbonate continuous crystallizer, includes the crystallization tank, the crystallization tank is the horizontal jar body, and crystallization tank one end is equipped with the inlet pipe, and the other end is equipped with row's material pipe, the inside cooling tube that is used for the coolant liquid to flow that is equipped with of crystallization tank, and is equipped with the scraper blade of striking off crystal grain along cooling tube direction round trip movement in the crystallization tank, jar body bottom is equipped with the blown down tank, and jar body bottom one side is equipped with the blown down pipe, be equipped with the auger conveying shaft that is used for crystal grain to carry to the blown down pipe in the blown down tank.

Preferably, a rotatable adjusting shaft is arranged in the tank body, the adjusting shaft penetrates through the scraping plate, and reciprocating threads for driving the scraping plate to move back and forth are arranged on the adjusting shaft.

Preferably, a driving motor is arranged on one side of the tank body, and the output end of the driving motor is connected with the adjusting shaft.

Preferably, the scraper is a plurality of, and scraper lateral wall and jar internal wall sliding connection, one of them scraper lower half is equipped with the first water conservancy diversion hole of run-through, and adjacent one scraper upper half is equipped with the second water conservancy diversion hole of run-through, first water conservancy diversion hole and second water conservancy diversion hole interval staggered distribution on the scraper, be equipped with on the scraper with the cooling tube corresponding and be used for the scraping hole that crystallization granule scraped.

Preferably, the reciprocating screw thread on the adjusting shaft is multi-section, and each section of reciprocating screw thread drives the corresponding scraping plate to periodically reciprocate in the tank body.

Preferably, a discharging motor is arranged on one side of the tank body, and the output end of the discharging motor is connected with the auger conveying shaft.

Preferably, the tank body one end is equipped with the feed liquor groove that the coolant liquid got into, cooling tube one end and feed liquor groove intercommunication, the tank body other end is equipped with coolant liquid exhaust flowing back groove, the cooling tube other end and flowing back groove intercommunication, be equipped with the feed liquor pipe that is linked together with the feed liquor groove on the tank body, and still be equipped with the flowing back pipe that is linked together with the flowing back groove on the tank body, feed liquor pipe and flowing back pipe respectively with the drainage end and the backward flow end intercommunication of coolant liquid mechanism.

Compared with the prior art, the utility model has the beneficial effects that:

the design of a plurality of cooling tubes can improve the contact probability of material and cooling tube, has improved holistic cooling crystallization efficiency, utilizes the round trip movement of scraper blade, can be with the crystallization granule on cooling tube surface can be timely strike off to fall into in the blown down tank of bottom, improved holistic crystallization efficiency, through hinge conveying axle, can be timely carry to the blown down tube, thereby timely carry crystallization granule, prevent that crystallization granule from piling up and causing the jam.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of the cooling pipe and the scraper of the present utility model when connected.

FIG. 3 is a schematic perspective view of the cooling tube and scraper of the present utility model when separated.

Fig. 4 is a schematic perspective view of a packing auger delivery shaft and a discharge pipe of the present utility model.

In the figure: 1. a tank body; 11. a driving motor; 12. a support base; 13. a feed pipe; 14. a discharge pipe; 15. a liquid inlet pipe; 16. a liquid discharge pipe; 17. a discharge chute; 18. a cooling tube; 19. an adjusting shaft; 2. a scraper; 21. a first deflector aperture; 22. a second deflector aperture; 23. scraping holes; 3. a discharging motor; 31. a screw conveyer shaft; 32. and a discharging pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, a sodium bicarbonate continuous crystallizer comprises a crystallization tank, the crystallization tank is a horizontal tank body 1, one end of the crystallization tank is provided with a feed pipe 13, the other end of the crystallization tank is provided with a discharge pipe 14, a plurality of cooling pipes 18 used for cooling liquid to flow are arranged in the crystallization tank, scraping plates 2 used for scraping crystal particles along the direction of the cooling pipes 18 and moving back and forth are arranged in the crystallization tank, a discharge chute 17 is arranged at the bottom of the tank body 1, one side of the bottom of the tank body 1 is provided with a discharge pipe 32, and a packing auger conveying shaft 31 used for conveying the crystal particles to the discharge pipe 32 is arranged in the discharge chute 17. Utilize scraper blade 2's back and forth movement, can strike off the crystallization granule on cooling tube 18 surface in time to fall into in the blown down tank 17 of bottom, through auger conveying axle, can be timely carry to the blown down tube 32, thereby timely carry crystallization granule, prevent that crystallization granule from piling up and causing the jam.

In this embodiment, referring to fig. 3, a rotatable adjusting shaft 19 is disposed in the tank 1, the adjusting shaft 19 passes through the scraper 2, a reciprocating thread for driving the scraper 2 to move back and forth is disposed on the adjusting shaft 19, a driving motor 11 is disposed on one side of the tank 1, and an output end of the driving motor 11 is connected with the adjusting shaft 19.

The design of the adjusting shaft 19 and the reciprocating screw thread can utilize the rotation of the adjusting shaft 19 and the characteristic of the reciprocating screw thread to realize the periodical back and forth movement of the scraping plate 2 in the tank body 1, thereby timely scraping the crystal particles on the surface of the cooling pipe 18 and realizing the automatic reciprocating movement of the scraping plate 2.

In this embodiment, a discharging motor 3 is disposed on one side of the tank 1, and an output end of the discharging motor 3 is connected with an auger conveying shaft 31.

In this embodiment, a liquid inlet tank into which cooling liquid enters is arranged at one end of the tank body 1, one end of the cooling pipe 18 is communicated with the liquid inlet tank, a liquid discharge tank for discharging the cooling liquid is arranged at the other end of the tank body 1, the other end of the cooling pipe 18 is communicated with the liquid discharge tank, a liquid inlet pipe 15 communicated with the liquid inlet tank is arranged on the tank body 1, a liquid discharge pipe 16 communicated with the liquid discharge tank is further arranged on the tank body 1, and the liquid inlet pipe 15 and the liquid discharge pipe 16 are respectively communicated with a water discharge end and a backflow end of the cooling liquid mechanism. The design of the liquid inlet pipe 15, the liquid outlet pipe 16, the liquid inlet groove and the liquid outlet groove can enable the cooling liquid to better pass through the plurality of cooling pipes 18, and the cooling liquid can circulate in the cooling pipes 18.

In this embodiment, a plurality of support bases 12 for supporting and fixing are disposed at the bottom of the tank 1.

Example 2

The same points as embodiment 1 are not described, but the difference from embodiment 1 is that:

in this embodiment, referring to fig. 2-3, the number of the scrapers 2 is plural, the outer side wall of the scrapers 2 is slidably connected with the inner wall of the tank 1, one of the lower half parts of the scrapers 2 is provided with a through type first deflector hole 21, the upper half part of the adjacent scraper 2 is provided with a through type second deflector hole 22, the first deflector hole 21 and the second deflector hole 22 are alternately distributed on the scrapers 2 at intervals, the scrapers 2 are provided with scraper holes 23 corresponding to the cooling pipes 18 and used for scraping the crystal particles, and the reciprocating threads on the adjusting shaft 19 are multiple sections, and each section of reciprocating threads drives the corresponding scraper 2 to periodically reciprocate in the tank 1. The scraper 2 is arranged into a plurality of sections, the first diversion holes 21 and the second diversion holes 22 are arranged at different positions of the scraper 2, the flow track of materials in the tank body 1 can be effectively changed, the materials can be distributed in an S shape in the tank body 1, the residence time of the materials is prolonged, the contact time of the materials and the cooling pipe 18 is prolonged, the crystallization efficiency is improved, the reciprocating threads are arranged into a plurality of sections, the scraper 2 can be adjusted in a certain section on the shaft 19 to reciprocate, so that each scraper 2 can scrape crystal particles in corresponding areas on the cooling pipe 18, and the scraping efficiency of the scraper 2 on the crystal particles on the cooling pipe 18 is ensured.

Working principle: in the present utility model,

feeding materials into the tank body 1 through the feed pipe 13, enabling the materials to move in an S-shaped track in the tank body 1, feeding cooling liquid into the cooling pipe 18 through the liquid inlet pipe 15 while enabling the cooling pipe 18 to cool the materials entering the tank body 1 and form crystal particles;

then, the driving motor 11 is started to drive the adjusting shaft 19 to continuously rotate, and the adjusting shaft 19 rotates to drive the plurality of scrapers 2 to periodically reciprocate in the tank 1 through reciprocating threads, so that the scraping holes 23 on the scrapers 2 can timely scrape crystal particles on the cooling pipe 18; preventing excessive crystallization particles on the cooling tube 18 from causing a decrease in the overall crystallization efficiency;

the crystallization particles automatically fall into the discharge chute 17 in the tank body 1 due to gravity, and then the auger conveying shaft 31 is driven to rotate by starting the discharge motor 3, so that the crystallization particles are timely conveyed to the discharge pipe 32, and then are timely conveyed to the next link.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of power also belongs to common knowledge in the art, and the utility model is mainly used for protecting a mechanical device, so the utility model does not explain the control mode and circuit connection in detail.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A sodium bicarbonate continuous crystallizer, which is characterized in that: including the crystallization tank, the crystallization tank is horizontal jar body (1), and crystallization tank one end is equipped with inlet pipe (13), and the other end is equipped with row material pipe (14), the inside cooling tube (18) that are used for the coolant liquid to flow that is equipped with of crystallization tank, and be equipped with in the crystallization tank along cooling tube (18) direction round trip movement scraper blade (2) of striking off the crystallization granule, jar body (1) bottom is equipped with blown down tank (17), and jar body (1) bottom one side is equipped with blown down pipe (32), be equipped with auger conveying shaft (31) that are used for crystallization granule to carry to blown down pipe (32) in blown down tank (17).

2. A continuous crystallizer of baking soda according to claim 1, characterized in that: the adjustable scraper is characterized in that a rotatable adjusting shaft (19) is arranged in the tank body (1), the adjusting shaft (19) penetrates through the scraper (2), and reciprocating threads for driving the scraper (2) to move back and forth are arranged on the adjusting shaft (19).

3. A continuous crystallizer of baking soda according to claim 2, characterized in that: one side of the tank body (1) is provided with a driving motor (11), and the output end of the driving motor (11) is connected with an adjusting shaft (19).

4. A continuous crystallizer of baking soda according to claim 2, characterized in that: the utility model discloses a scraper blade, including scraper blade (2), cooling tube (18) and jar body (1) inner wall sliding connection, scraper blade (2) lateral wall, one of them scraper blade (2) lower half is equipped with first water conservancy diversion hole (21) of run-through, and adjacent one scraper blade (2) upper half is equipped with second water conservancy diversion hole (22) of run-through, first water conservancy diversion hole (21) and second water conservancy diversion hole (22) interval staggered distribution on scraper blade (2), be equipped with on scraper blade (2) with cooling tube (18) corresponding and be used for scraping hole (23) of crystallization granule scraping.

5. A continuous sodium bicarbonate crystallizer as claimed in claim 4, wherein: the reciprocating threads on the adjusting shaft (19) are multiple sections, and each section of reciprocating threads drives the corresponding scraping plate (2) to periodically reciprocate in the tank body (1).

6. A continuous crystallizer of baking soda according to claim 1, characterized in that: one side of the tank body (1) is provided with a discharging motor (3), and the output end of the discharging motor (3) is connected with an auger conveying shaft (31).

7. A continuous crystallizer of baking soda according to claim 1, characterized in that: the cooling device is characterized in that a liquid inlet groove for cooling liquid to enter is formed in one end of the tank body (1), one end of the cooling pipe (18) is communicated with the feed groove, a liquid discharge groove for cooling liquid to drain is formed in the other end of the tank body (1), the other end of the cooling pipe (18) is communicated with the liquid discharge groove, a liquid inlet pipe (15) communicated with the liquid inlet groove is arranged on the tank body (1), a liquid discharge pipe (16) communicated with the liquid discharge groove is further arranged on the tank body (1), and the liquid inlet pipe (15) and the liquid discharge pipe (16) are respectively communicated with a water discharge end and a backflow end of the cooling liquid mechanism.