CN209362458U - A kind of crystallization reactor - Google Patents

Abstract

The utility model belongs to crystallization treatment equipment technical field, and in particular to the outer side wall of a kind of crystallization reactor, including autoclave body, the autoclave body is equipped with shell, and insulating layer is equipped between the autoclave body and shell, is used to accommodate mixed liquor to be crystallized in the autoclave body；Heat exchanging pipe structure is equipped in the autoclave body, the heat exchanging pipe structure is directly contacted with the mixed liquor to be crystallized so that refrigerant and mixed liquor to be crystallized in heat exchanging pipe structure carry out direct heat exchange.The crystallization reactor of the utility model, it is directly contacted by the intracorporal heat exchanging pipe structure of kettle with mixed liquor to be crystallized, so that the refrigerant and mixed liquor to be crystallized in heat exchanging pipe structure carry out direct heat exchange, condensed water is conducted heat to without refrigerant and autoclave body is cooled down by condensed water, i.e. the application is level-one heat exchange, more energy saving.

Description

A kind of crystallization reactor

Technical field

The utility model belongs to crystallization treatment equipment technical field, and in particular to a kind of crystallization reactor.

Background technique

With the rapid development of social economy, industrial speed is also getting faster, in this condition, industrial production It is also more and more to generate waste material, but due to not perfect and technique the limitation of the equipment of industrial product, obtains the raw material of industry not To full utilization, so the often waste liquid of the inorganic salts containing high concentration in production waste material, discharge amount is just with end product The raising of yield and increase.Waste liquid is managed by various countries as hazardous waste due to there is serious corrosivity, as the U.S. will It is included in " protection of resources and regeneration bill ", and the spent acid of pH≤2 is included in " National Hazard waste register " by China.The production of product Process has a large amount of discharging of waste liquid every year, and general medium-sized and small enterprises are fitted without treating waste liquid device, control in addition waste liquid It manages costly, is often directly discharged among natural environment.The direct emission of such waste liquid not only has seriously polluted the environment Pollution of waterhead is caused, and causes greatly to waste.Because containing much recycling available industrial materials and can in waste liquid The byproduct for for utilizing, so being exactly necessary to some industrial productions for recycling the crystallization reactor of waste material.

It is crystallized for example, the patent document of Publication No. CN206508589U discloses a kind of production of chloroacetic acid with reclaimed materials Kettle, including variable-frequency motor, charging mask and return pipe are provided with transmission device on the right side of variable-frequency motor, connect below feed inlet It is connected to crystallization kettle inner body and crystallization kettle ectosome, crystallization kettle ectosome is connected on the right side of return pipe, the lower section of crystallization kettle ectosome is fixed There is bracket, the two sides of agitating shaft, which are fixed with, scrapes wall blade and stirring rod, and the lower section of agitating shaft passes through in fixing bearing and crystallization kettle Body is connected, and observation window is provided in crystallization kettle inner body and crystallization kettle ectosome, is arranged between crystallization kettle inner body and crystallization kettle ectosome There is interlayer cavity, discharging device is installed below crystallization kettle ectosome.The production of chloroacetic acid is provided with reclaimed materials crystallization kettle and is scraped Wall blade makes the uniform sufficient crystallising of material stirring, and agitating shaft lower end is fixed stability when ensure that stirring by fixing bearing, if It is standby that there is cooling water tank and water pump, so that cooling water is recycled.

For another example, the patent document of Publication No. CN205549659U discloses a kind of knot suitable for anti-aging agent crystallization processes Brilliant kettle comprising have crystallization kettle ontology, be provided with collet among the side wall of crystallization kettle ontology；The bottom end of crystallization kettle ontology is arranged There is assisting crystallisation room, is separated between crystallization kettle ontology by filtering laminate, filter layer intralamellar part is provided with screen pipe Road；Auxiliary collet is provided among the side wall of assisting crystallisation room, it is mutually indepedent with the collet among crystallization kettle ontology, collet with Auxiliary collet inner part Dao Tong not have condensed water；By the setting of assisting crystallisation room and auxiliary collet, make its temperature compared with crystallization Remaining region of kettle ontology is lower, so that the residual substance of dissolution in the solution can be crystallized further.

Therefore, based on the crystallization kettle of the prior art, some byproducts and raw material for utilizing in process of production Recycling and reusing can be carried out by reclaimed materials crystallization kettle.But above two crystallization kettle in the prior art is changed in cooling It is even more that it is at least secondary heat exchange in thermal process, be easy to cause thermal loss, heat source consumption is big.

Utility model content

Based on the above deficiencies in the existing technologies, the utility model provides a kind of crystallization reactor.

In order to reach above-mentioned purpose of utility model, the utility model uses following technical scheme:

The outer side wall of a kind of crystallization reactor, including autoclave body, the autoclave body is equipped with shell, sets between the autoclave body and shell There is insulating layer, is used to accommodate mixed liquor to be crystallized in the autoclave body；Heat exchanging pipe structure, the heat exchanger tube are equipped in the autoclave body Line structure is directly contacted with the mixed liquor to be crystallized so that refrigerant and mixed liquor to be crystallized in heat exchanging pipe structure carry out directly Connect heat exchange.

Preferably, the heat exchanging pipe structure is the heat exchanger tube laid in the shape of a spiral along the short transverse of autoclave body, The heat exchanger tube is single row or multiple rows.

Preferably, the heat exchanger tube have entrance and exit, the entrance and exit of heat exchanger tube respectively with condenser Refrigerant exit and compressor refrigerant inlet connection, the refrigerant inlet of condenser is connected to the refrigerant exit of compressor to constitute Circulation loop.

Preferably, the refrigerant is freon.

Preferably, multiple groups heat exchanging pipe structure is equipped in the autoclave body.

Preferably, the autoclave body is equipped with several feed inlets, and the feed inlet includes concentrated acid feed inlet and wait tie Brilliant mixed liquor feed inlet, the concentrated acid feed inlet, mixed liquor feed inlet to be crystallized are from the external world through shell to the inside with autoclave body Connection.

Preferably, the autoclave body includes main part and the necking part along the extension of the bottom end of main part, the main body The top end opening in portion.

Preferably, the top end opening of the main part is equipped with lid, and the lid is equipped with motor, the motor For driving blender, the agitating shaft of blender is extended in autoclave body, and the agitating shaft of blender has paddle.

Preferably, the lid includes fixed part and opening and closing part, and the fixed part of the lid is fixed on the kettle The middle position of the top end opening in phosphor bodies portion；The opening and closing part is used to open or is closed the top end opening of the autoclave body main part Middle position two sides rest position.

Preferably, the bottom end opening of the necking part, the bottom end opening of the necking part and a flange arrangement connect It connects.

Compared with prior art, beneficial effect is the utility model:

The crystallization reactor of the utility model is directly connect by the intracorporal heat exchanging pipe structure of kettle with mixed liquor to be crystallized Touching conducts heat to so that the refrigerant and mixed liquor to be crystallized in heat exchanging pipe structure carry out direct heat exchange without refrigerant Condensed water and autoclave body is cooled down by condensed water, i.e., the application be level-one heat exchange, it is more energy saving.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the crystallization reactor of the utility model embodiment one；

Fig. 2 is the partial sectional view of the crystallization reactor of the utility model embodiment one；

Fig. 3 is the side view of the crystallization reactor of the utility model embodiment one；

Fig. 4 is the side view of the other direction of the crystallization reactor of the utility model embodiment one；

Fig. 5 is the top view of the crystallization reactor of the utility model embodiment one；

Fig. 6 is the structural schematic diagram of the heat exchanging pipe structure in the crystallization reactor of the utility model embodiment one；

Fig. 7 is the structural schematic diagram of the lid of the crystallization reactor of the utility model embodiment one；

Fig. 8 is that the assembling structure of the lid of the crystallization reactor of the utility model embodiment one, motor and blender is shown It is intended to；

Fig. 9 is the bottom view of the crystallization reactor of the utility model embodiment one.

Specific embodiment

In order to illustrate more clearly of the utility model embodiment, the specific reality of Detailed description of the invention the utility model will be compareed below Apply mode.It should be evident that the drawings in the following description are merely some embodiments of the present invention, it is common for this field For technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings, and obtain Obtain other embodiments.In addition, the direction term being previously mentioned in following embodiment, such as: upper and lower, left and right, front or rear etc., It is only the direction with reference to attached drawing.Therefore, the direction term used is intended to be illustrative and not intended to limit the utility model.

Embodiment one:

As shown in figs 1-9, the crystallization reactor of the present embodiment, including autoclave body 1, autoclave body 1 are interior for accommodating mixing to be crystallized Liquid, the mixed liquor to be crystallized of the present embodiment are the spent acid generated in process of producing product, the inorganic salts containing high concentration in spent acid, Inorganic in spent acid is salted out using the method for crystallisation by cooling.

Specifically, as shown in Fig. 2, autoclave body 1 includes main part 1-1 and the necking part 1-2 along the extension of the bottom end of main part, master Body portion 1-1 is the cylindrical structure of inner hollow, and necking part 1-2 is the inverted cone structure of inner hollow, the top of necking part 1-2 Face diameter is equal with the basal diameter of main part 1-1, so that the bottom end of main part 1-1 be made to smoothly transition to necking part 1-2's Top.The outside of autoclave body 1 is equipped with shell 2, and specifically, the structure of shell 2 is identical as the structure of autoclave body 1, the structure ruler of shell 2 The very little structure size than autoclave body 1 is big, when so that shell 2 being coated on the outside of autoclave body 1, constitutes between shell 2 and autoclave body 1 for holding The space of thermal insulation material is set, is protected so that having between the autoclave body 1 of the crystallization reactor of the present embodiment and the shell 2 on the outside of it Warm layer 6.Wherein, the material of autoclave body 1 can select etch-proof stainless steel material, rigid plastics etc., and the material of shell 2 can be selected With stainless steel material, rigid plastics etc., thermal insulation material can select organic insulation material or inorganic heat insulation material, specific material Free collocation can be carried out according to the requirement of practical application by selecting.As in Figure 3-5, on the lateral wall of shell 2 circumferentially Four mounting bases 21 are uniformly arranged, mounting base 21 is cleat structure；Mounting base 21 is used for against the branch for being mounted on crystallization reactor On support, so that crystallization reactor is fixed on certain altitude from the ground.

In addition, as shown in Figs. 1-5, set on the main part of autoclave body 1 there are three feed inlet (can also be equipped with one or two or More), two of them feed inlet is respectively concentrated acid feed inlet and spent acid feed inlet, another feed inlet can be used as other originals Material charging is used.Concentrated acid feed inlet, spent acid feed inlet are connected to from the external world through shell 2 to the inside of autoclave body 1 respectively；Concentrated acid charging Concentrated acid feed pipe 11 is installed on mouthful, concentrated acid feed pipe 11 is through concentrated acid feed inlet to the inside of autoclave body 1, and concentrated acid feed pipe 11 With concentrated acid feed inlet be tightly connected, concentrated acid feed pipe 11 can external connection concentrated acid storage tank, convenient for automation control concentrated acid injection In autoclave body；Spent acid feed pipe 12 is installed, spent acid feed pipe 12 is in spent acid feed inlet to autoclave body 1 on spent acid feed inlet Portion, and spent acid feed pipe 12 and spent acid feed inlet are tightly connected, spent acid feed pipe 12 can external connection spent acid pond, convenient for automatically Change in control spent acid injection autoclave body.Be additionally provided with leakage fluid dram on the main part of autoclave body 1, leakage fluid dram from the external world through shell 2 to kettle The inside of body 1 is connected to, and leakage fluid dram is in the lower section of spent acid feed inlet；Drain pipe 13 is installed, drain pipe 13 passes through on leakage fluid dram Leakage fluid dram is worn to the inside of autoclave body 1, and drain pipe 13 and leakage fluid dram are tightly connected, drain pipe 13 can external connection waste liquid pool, So as to by the intracorporal discharging of waste liquid of kettle into waste liquid pool.

For accommodating spent acid to be crystallized in autoclave body 1；As shown in figure 5, in order to enable spent acid can crystallisation by cooling, in autoclave body 1 inside is equipped with heat exchanging pipe structure 3, and the circulation of refrigerant is used in heat exchanging pipe, by heat exchanging pipe structure with it is to be crystallized Spent acid directly contact so that the refrigerant in heat exchanging pipe structure and spent acid to be crystallized carry out direct heat exchange, reduce The loss of heat improves the efficiency of heat exchange.Specifically, as shown in fig. 6, heat exchanging pipe structure 3 is the short transverse along autoclave body The heat exchanger tube laid in the shape of a spiral, wherein the diameter of helicoidal structure is adapted with the internal diameter of autoclave body, to avoid subsequent paddle Assembly；Heat exchanger tube there is entrance 3-1 and outlet 3-2, the entrance 3-1 of heat exchanger tube and export 3-2 respectively with the refrigerant of condenser The connection of the refrigerant inlet of outlet and compressor, the refrigerant inlet of condenser are connected to the refrigerant exit of compressor to constitute and be recycled back to Road, refrigerant are freon, constitute level-one heat exchange, solve thermal loss caused by multi-stage heat exchanger in the prior art, heat source consumption Big problem.Wherein, the installation site of heat exchanging pipe structure 3 is with the boundary position of the main part 1-1 of autoclave body and necking part 1-2 Initial position is installed, extends to direction locating for main part and installs, increase between spent acid and heat exchanging pipe structure 3 to be crystallized Heat exchange area.Heat exchanging pipe structure 3 is fixed on the intracorporal mode of kettle can be with are as follows: circumferentially uniformly distributed solid in the inner wall of autoclave body Fixed there are four (or more) mounting racks 31, such as perpendicular type mounting rack, and heat exchanging pipe structure is directly abutted assembly four At the right-angled corner of a mounting rack；Alternatively, heat exchanging pipe structure is directly welded at the inside of autoclave body (metal autoclave body)；Or Other existing installation fixed forms.

In addition, the top of the main part 1-1 of autoclave body is hatch frame, i.e., the opening on autoclave body top is circle；Such as Fig. 7 and 8 Shown, the opening on autoclave body top is provided with lid 4, and motor 7 is installed on lid 4, and motor 7 is used to drive blender, blender Agitating shaft 81 extends in autoclave body, and the agitating shaft 81 of blender has paddle 82.Specifically, lid 4 include fixed part 4-1 and Opening and closing part 4-2, the fixed part 4-1 of lid are fixed on the middle position of the top end opening of autoclave body main part 1-1；Opening and closing part 4-2 has Two, two opening and closing part 4-2 are respectively used to the surplus of the middle position two sides of the top end opening of open or close autoclave body main part 1-1 Remaining position；Motor 7 is fixed on the middle position of the fixed part 4-1 of lid, so that at the agitating shaft and paddle of blender In the middle of autoclave body.

The bottom end of the necking part 1-2 of autoclave body is hatch frame, i.e. the opening of autoclave body bottom end is circle, and autoclave body bottom end is opened The opening face of mouth and autoclave body top.In addition, as shown in figure 9, the bottom end opening of the necking part 1-2 of autoclave body and a flange arrangement 5 are tightly connected, convenient for docking with other waste treatment equipments.

The crystallization reactor of the present embodiment is directly contacted by the intracorporal heat exchanging pipe structure of kettle with mixed liquor to be crystallized, So that the refrigerant and spent acid to be crystallized in heat exchanging pipe structure carry out direct heat exchange, condensation is conducted heat to without refrigerant Water and autoclave body is cooled down by condensed water again, i.e., the crystallization reactor of the present embodiment be level-one heat exchange, it is more energy saving.

The crystallization processes of the crystallization reactor of the present embodiment, comprising:

Spent acid and concentrated acid are successively injected into autoclave body by spent acid feed pipe and concentrated acid feed pipe；

Gaseous coolant is compressed, is condensed flow through so that cooling medium liquefaction liquid refrigerants in heat exchanging pipe structure with to Crystallization mixture carries out direct heat exchange and is vaporized with absorbing the heat in mixed liquor to be crystallized；Simultaneously treat crystallization mixture into Row stirring.Specifically, by compressor to freon carry out compress and by condenser condense so that freon liquefaction, liquid Freon flows through heat exchanging pipe structure, and due to pressure reduction, the freon of liquid needs vaporization of absorbing heat, and therefore, flows through heat exchanger tube The spent acid to be crystallized outside freon and heat exchanging pipe structure in line structure directly carries out heat exchange, so that the intracorporal spent acid of kettle Temperature drops to 5 DEG C hereinafter, so as to which the inorganic salts in spent acid are precipitated.

The crystallization processes of the present embodiment, cooling heat transferring belongs to level-one heat exchange, reduces the loss of heat, more energy saving.

Embodiment two:

The crystallization reactor of the present embodiment and embodiment one the difference is that: laid in the intracorporal sustained height of kettle more Arrange heat exchanging pipe structure.

Specifically, two rows of heat exchanging pipe structures are installed, i.e., in embodiment in the autoclave body of the crystallization reactor of the present embodiment Row's heat exchanging pipe structure is added on the basis of one heat exchanging pipe structure again, i.e., in the heat exchanging pipe structure of embodiment one Inner ring is installed again fixes row's heat exchanging pipe structure, wherein the structure size of internal heat exchanging pipe structure is external heat exchanger tube The structure size of line structure reduces in certain proportion, however, it is desirable to guarantee that the laying of heat exchanging pipe structure does not influence to stir Mix the normal operation of leaf.In addition, the entrance and exit for the heat exchanging pipe structure added respectively with the refrigerant exit of condenser and pressure The refrigerant inlet connection of contracting machine, the refrigerant inlet of condenser are connected to the refrigerant exit of compressor to constitute circulation loop.It adds The cooling efficiency of spent acid to be crystallized in autoclave body can be improved in heat exchanging pipe structure.In addition, installation in the autoclave body of crystallization reactor Heat exchanging pipe structure can also be multiple rows of (indicate quantity for two rows more than), can specifically be carried out according to the demand of practical application Design.

Other structures can be with reference implementation example one.

Embodiment three:

The crystallization reactor of the present embodiment and embodiment one the difference is that: lay multiple groups in the short transverse of autoclave body Heat exchanging pipe structure.

Specifically, two groups of heat exchanging pipe structures are installed, i.e., in embodiment in the autoclave body of the crystallization reactor of the present embodiment One group of heat exchanging pipe structure is added on the basis of one heat exchanging pipe structure, i.e., in the upper of the heat exchanging pipe structure of embodiment one Side or lower section are installed again fixes one group of heat exchanging pipe structure, and the structure size of every group of heat exchanging pipe structure is identical, however, it is desirable to protect The laying of card heat exchanging pipe structure does not influence the normal operation of paddle.In addition, the entrance for the heat exchanging pipe structure added and go out It mouthful is connected to respectively with the refrigerant inlet of the refrigerant exit of condenser and compressor, the refrigerant of the refrigerant inlet of condenser and compressor Outlet is to constitute circulation loop.Adding heat exchanging pipe structure can be improved the cooling efficiency of spent acid to be crystallized in autoclave body. In addition, the heat exchanging pipe structure installed in the autoclave body of crystallization reactor can also be multiple groups (indicating that quantity is more than two), tool Body can be designed according to the demand of practical application.

Example IV:

The crystallization reactor of the present embodiment and embodiment one the difference is that:

On the basis of embodiment 1, can be omitted as needed shell, insulating layer, lid, motor, in blender One or more structures.

Other structures can be with reference implementation example one.

In the above-described embodiments, the main part of autoclave body can also be hollow rectangular parallelepiped structure, cube structure, ellipsoid knot Structure or obform body structure etc.；The necking part of autoclave body can also be the hollow wimble structure of falling trigone, semiellipsoid structure or other The structure of necking down.

It should be noted that above-described embodiment can be freely combined as needed.The above is only to the utility model Preferred embodiment and principle be described in detail, for those of ordinary skill in the art, mention according to the utility model The thought of confession, will change in specific embodiment, and these changes also should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of crystallization reactor, including autoclave body, which is characterized in that the outer side wall of the autoclave body be equipped with shell, the autoclave body with It is equipped with insulating layer between shell, is used to accommodate mixed liquor to be crystallized in the autoclave body；Heat exchanging pipe structure is equipped in the autoclave body, The heat exchanging pipe structure is directly contacted with the mixed liquor to be crystallized so that the refrigerant in heat exchanging pipe structure is mixed with to be crystallized It closes liquid and carries out direct heat exchange.

2. a kind of crystallization reactor according to claim 1, which is characterized in that the heat exchanging pipe structure is along autoclave body The heat exchanger tube that short transverse is laid in the shape of a spiral, the heat exchanger tube are single row or multiple rows.

3. a kind of crystallization reactor according to claim 2, which is characterized in that the heat exchanger tube has entrance and exit, The entrance and exit of heat exchanger tube is connected to the refrigerant inlet of the refrigerant exit of condenser and compressor respectively, the refrigerant of condenser enters Mouth is connected to the refrigerant exit of compressor to constitute circulation loop.

4. a kind of crystallization reactor according to claim 3, which is characterized in that the refrigerant is freon.

5. a kind of crystallization reactor according to claim 1, which is characterized in that be equipped with multiple groups heat exchanging pipe in the autoclave body Structure.

6. a kind of crystallization reactor according to claim 1, which is characterized in that the autoclave body is equipped with several feed inlets, The feed inlet includes concentrated acid feed inlet and mixed liquor feed inlet to be crystallized, the concentrated acid feed inlet, mixed liquor to be crystallized charging Mouth is connected to from the external world through shell to the inside with autoclave body.

7. a kind of crystallization reactor according to claim 1-6, which is characterized in that the autoclave body includes main part With the necking part extended along the bottom end of main part, the top end opening of the main part.

8. a kind of crystallization reactor according to claim 7, which is characterized in that the top end opening of the main part is equipped with lid Body, the lid are equipped with motor, and for driving blender, the agitating shaft of blender extends in autoclave body the motor, stirring The agitating shaft of machine has paddle.

9. a kind of crystallization reactor according to claim 8, which is characterized in that the lid includes fixed part and folding Portion, the fixed part of the lid are fixed on the middle position of the top end opening of the autoclave body main part；The opening and closing part is for beating Open or be closed the rest position of the middle position two sides of the top end opening of the autoclave body main part.

10. a kind of crystallization reactor according to claim 7, which is characterized in that the bottom end opening of the necking part, it is described The bottom end opening of necking part is connect with a flange arrangement.