WO2019109731A1

WO2019109731A1 - Automated preparation device for composite heat storage material

Info

Publication number: WO2019109731A1
Application number: PCT/CN2018/110358
Authority: WO
Inventors: 曾智勇; 徐慧芬; 程勇; 陈祖新
Original assignee: 青海爱能森新材料科技有限公司
Priority date: 2017-12-07
Filing date: 2018-10-16
Publication date: 2019-06-13
Also published as: CN107824064A

Abstract

An automated preparation device for a composite heat storage material, comprising: a negative-pressure conveying and batching mechanism comprising a plurality of branches; a mixing mechanism comprising a first pipeline, an inlet of the mixing mechanism being connected to an outlet of the negative-pressure conveying and batching mechanism by means of the first pipeline, and the negative-pressure conveying and batching mechanism being configured to convey various raw materials to the mixing mechanism according to a proportion; a packaging mechanism comprising a second pipeline, an inlet of the packaging mechanism being communicated with an outlet of the mixing mechanism by means of the second pipeline, and the packaging mechanism being configured to package a finished product; and an electric control mechanism separately connected to the negative-pressure conveying and batching mechanism, the packaging mechanism, and the mixing mechanism, and configured to control batching of the negative-pressure conveying and batching mechanism according to an input raw material proportion and control automated operation of the negative-pressure conveying and batching mechanism, the mixing mechanism, the packaging mechanism, and the electric control mechanism.

Description

Composite heat storage material automatic preparation device

The present application claims the priority of the Chinese patent application entitled "A composite heat storage material automatic preparation device" on December 7, 2017, the application number is 201711284771.8, the entire contents of which are incorporated herein by reference. in.

Technical field

The present disclosure relates to the field of composite heat storage material preparation technology, for example, to a composite heat storage material automatic preparation device.

Background technique

Thermal storage technology can be used to solve the contradiction between thermal energy supply and demand mismatch. It is an important technology to improve energy efficiency and protect the environment. It is widely used in the fields of solar energy utilization, “shift peak filling” of electricity, waste heat and waste heat recovery. Application prospects.

In the rapid development stage of China's CSP, a large amount of composite heat storage material is needed as a heat storage and heat transfer medium. The composite heat storage material is a stable eutectic formed by compounding two or more inorganic salts in a certain proportion. The compound, compared with the raw materials alone, changes the melting point, boiling point and physical properties of the eutectic compound, improving the material properties of the original material.

The final composite heat storage material product entering the photothermal power station mechanism is not a monomer of a certain raw material, but a mixed eutectic salt formed by combining two or a plurality of other monomer raw materials according to a certain ratio. If you choose to purchase the monomer, in order to control the performance of the product into the organization, you first need to strictly control the quality of the raw materials, and the compounding process requires professional personnel to operate. Once the composite heat storage material product has problems in the operation process, it is difficult to compensate and define the material supplier. In the related art, the method for compounding the composite heat storage material is generally performed manually, and is mixed according to the proportion of each raw material in the composite heat storage material to be mixed, and the stirring device used is a conventional stirring device. If the stirring time is short, the stirring will be insufficient, and the quality (purity and uniformity) of the product cannot be guaranteed; the long time will not improve the efficiency, the production of the product cannot be guaranteed, and the time and labor and the cost are high. In addition, the various parts of the composite heat storage material production process are carried out separately and carried by hand. There is no special composite heat storage material production line in the related technology.

Summary of the invention

The present disclosure provides an automatic preparation device for a composite heat storage material, which can realize continuous and automatic operation of the whole process of compound heat storage material compounding.

An automatic preparation device for composite heat storage materials, comprising:

a negative pressure conveying and dispensing mechanism, the negative pressure conveying and batching mechanism comprising a plurality of branches and a first pipeline;

a mixing mechanism, wherein an inlet of the mixing mechanism is connected to an outlet of the negative pressure conveying and dispensing mechanism through the first conduit, and the negative pressure conveying and dispensing mechanism is configured to convey a plurality of raw materials to the mixing mechanism according to a ratio The mixing mechanism includes a second conduit;

a packaging mechanism, the inlet of the packaging mechanism is in communication with the outlet of the mixing mechanism through the second conduit, the packaging mechanism being configured to dispense the finished product;

An electric control mechanism is respectively connected to the negative pressure conveying and batching mechanism, the packaging mechanism and the mixing mechanism, and the electric control mechanism controls the ingredients of the negative pressure conveying and batching mechanism according to the input raw material ratio, and controls the The automatic operation of the negative pressure conveying and batching mechanism, the mixing mechanism, the packaging mechanism and the electronic control mechanism.

DRAWINGS

1 is a schematic view of an apparatus for automatically preparing a composite heat storage material according to an embodiment;

2 is a schematic view of a compounding mechanism of a composite heat storage material automatic preparation device according to an embodiment;

3 is a schematic diagram of a mixing mechanism of a composite heat storage material automatic preparation device according to an embodiment;

4 is a schematic view of a packaging mechanism of a composite heat storage material automatic preparation device according to an embodiment;

FIG. 5 is a schematic diagram of a granulation mechanism of a composite heat storage material automatic preparation device according to an embodiment; FIG.

FIG. 6 is a schematic diagram of the connection of an electronic control mechanism of the composite heat storage material automatic preparation device according to an embodiment.

In the picture:

1-negative pressure conveying and dosing mechanism; 10, electronic control mechanism;

11-unloading assembly; 12-breaking assembly; 13-first pipeline; 131-first branch; 132-second branch; 133-third branch;

2-mixing mechanism; 21-mixing silo; 22-cone blender; 23-second pipeline;

3-packaging mechanism; 31-finished silo; 32-packaging assembly; 321-first packaging production line; 322-second packaging production line; 33-screw conveyor;

4-granulation mechanism; 41-first suction hopper; 42-granulation mechanism; 421-pair roll press machine; 422-granulator; 423-linear sieve; 43-granule silo; 44-vacuum loading Machine; 45-second suction hopper.

Detailed ways

As shown in FIG. 1 , the embodiment provides an automatic preparation device for a composite heat storage material, which comprises a negative pressure conveying and batching mechanism 1 , a mixing mechanism 2 , a packaging mechanism 3 and an electronic control mechanism 10 . The negative pressure conveying and dosing mechanism 1 comprises a plurality of branches arranged to convey a plurality of raw materials to the mixing mechanism 2 according to the ratio; the inlet of the mixing mechanism 2 passes through the first line 13 and the negative pressure conveying the dosing mechanism 1 The outlet of the packaging mechanism 3 is connected to the outlet of the mixing mechanism 2 through the second conduit 23, and the packaging mechanism 3 is arranged to dispense the finished product; as shown in FIG. 6, the electronic control mechanism 10 and the negative pressure conveying and dispensing mechanism respectively The packaging mechanism 3 is connected to the mixing mechanism 2, and the electronic control mechanism 10 is arranged to control the dosing of the negative pressure conveying dosing mechanism 1 according to the input material ratio and to control the automatic operation of the above mechanism.

As shown in Fig. 2, the negative pressure conveying and dosing mechanism 1 includes a discharge assembly 11 and a crushing assembly 12 which are arranged to discharge the raw materials in the tons of bags. The unloading assembly 11 includes a ton bag unloading hopper and a buffer hopper. The raw materials in the ton bag are discharged to the buffer hopper through the ton bag unloading hopper. In order to shatter the agglomerated material in the ton bag and facilitate the falling of the raw material, the unloading assembly 11 is further A tapping mechanism is provided, and the tapping mechanism is set to tap the bag to make the raw material easy to fall. A manual flapper valve is disposed below the buffer bucket, and the inlet of the crushing assembly 12 is connected to the outlet of the discharge assembly 11 and is connected or closed by a manual flapper valve. The crushing unit 12 is provided with a hobbing type crusher, and the hobbing type crusher is arranged to crush the raw materials falling in the buffer bucket to make the raw material particles uniform. The outlet of the crushing assembly 12 is connected to the inlet of the first conduit 13.

Since the preparation of the composite heat storage material requires the use of a plurality of raw materials, the negative pressure conveying and dosing mechanism 1 has a plurality of branches to separately feed a plurality of raw materials. In the present embodiment, the first pipe 13 includes a first branch 131, a second branch 132, and a third branch 133, and each branch is respectively connected with a discharge assembly 11 and a crushing assembly 12, each branch A raw material is delivered.

As shown in FIG. 3, the mixing mechanism 2 is composed of a plurality of mixing components, and a plurality of mixing components work together to improve mixing efficiency. In the present embodiment, the mixing mechanism 2 is provided with three mixing components (three mixing components including a first mixing component, a second mixing component, and a third mixing component), each mixing component including a mixing bin 21 and a cone The mixer 22, the inlet of the mixing silo 21 is connected to the outlet of the first pipeline 13, and the first branch 131, the second branch 132 and the third branch 133 are both connected to the mixing silo 21, and the three branches are transported. The three raw materials are trapped in the mixing bin 21 through a trap installed above the mixing bin 21; the inlet of the cone blender 22 is connected to the outlet of the mixing bin 21, and the raw material trapped in the mixing bin 21 enters The cone mixer 22 is mixed. The cone mixer 22 is provided with two spiral cantilevers. The cantilever rotates around its own helical axis and rotates around the central axis of the conical container to sufficiently mix a variety of materials. The outlet of the cone mixer 22 is connected to the inlet of the second line 23, and the finished product after the mixing is conveyed to the packaging mechanism 3 through the second line 23.

The process of conveying the plurality of raw materials to the mixing bin 21 by the negative pressure conveying and batching mechanism 1 is as follows:

After the recipe is input, each of the mixing silos 21 sequentially draws the raw materials from the three branches of the first conduit 13 in accordance with the ratio of the three raw materials. First, the first branch 131 conveys all of the first material into the mixing bin 21 of the first mixing assembly; then, the first branch 131 delivers the first material into the mixing bin 21 of the second mixing assembly. At the same time, the second branch 132 conveys the second raw material into the mixing bin 21 of the first mixing assembly; the third branch 133 transports the raw material as above. Each branch conveys the material of the branch in sequence to three mixing bins 21, each of which sequentially draws the raw materials of the three branches. In this way, the three mixing components separately mix the raw materials, effectively improving the mixing efficiency.

As shown in FIG. 4, the mixing mechanism 2 conveys the finished finished product to the packaging mechanism 3 through the second conduit 23, which includes the finished silo 31 and the package assembly 32, and the outlet and package assembly 32 of the finished silo 31. The connection, package assembly 32 is configured to quantitatively package the finished product.

At the time of packaging, for the different packaging needs, the first packaging production line 321 and the second packaging production line 322 are disposed in the packaging assembly 32. The size of the first packaging production line 321 is larger than the size of the second packaging production line 322, and the first packaging production line 321 is set. To produce a large package of composite heat storage materials, a second package line 322 is provided to produce a composite heat storage material in a small package. The first package production line 321 and the second package production line 322 are respectively connected to the outlet of the finished silo 31.

The finished product from the outlet of the finished silo 31 needs to be separately delivered to the inlet of the first packaging line 321 and the inlet of the second packaging line 322, so that the packaging mechanism 3 also sets a spiral between the finished silo 31 and the package assembly 32. The conveyor 33, the auger 33 is arranged to transport the finished product to both ends of the auger 33. The middle of the auger 33 is connected to the outlet of the finished silo 31, the first end of the auger 33 is a first outlet, the second end of the auger 33 is a second outlet, and the first outlet and the first packaging line 321 Connected, the second outlet is connected to the second package line 322.

Since the mixed product of the mixing mechanism 2 is a powder having a small particle size, the powder structure is in the form of powder, and sometimes the composite heat storage material product is required to be a pellet. Therefore, the composite heat storage material automatic preparation device may further comprise The granulation mechanism 4, as shown in Fig. 5, the granulation mechanism 4 includes a first suction hopper 41, a granulation unit 42, and a pellet silo 43. Wherein, the inlet of the first suction hopper 41 is connected to the outlet of the finished silo 31, the first suction hopper 41 is arranged to suck the powder; the inlet of the granulation assembly 42 is connected to the outlet of the first suction hopper 41, and the granulation assembly 42 is arranged In order to granulate the powder, a vacuum feeder 44 is disposed between the granulation unit 42 and the first suction hopper 41, and the vacuum feeder 44 sucks the powder in the first suction hopper 41 into the granulation unit 42. The granulation unit 42 is located below the vacuum feeder 44, and the granulation unit 42 is arranged to granulate the powder falling in the vacuum feeder 44; after the granulation is completed, the granules having a diameter within a predetermined range belong to Qualified pellets, qualified pellets enter the second suction hopper 45 and are then drawn into the pellet silo 43 where the outlet of the pellet silo 43 is coupled to the inlet of the package assembly 32 to deliver the pellets to the package assembly 32. Packing.

The granulation assembly 42 includes a roll press 421, a granulator 422, and a linear screen 423. Wherein, the inlet of the roll presser 421 is connected to the outlet of the vacuum feeder 44; the inlet of the granulator 422 is connected to the outlet of the roll presser 421; the linear screen 423 is located below the exit of the granulator 422, the linear screen 423 Set to sieving pellets and powder.

The linear screen 423 includes a first screen and a second screen which are arranged in a stack, the mesh of the first screen is larger than the mesh of the second screen, and the mesh of the first screen can allow powder and qualified particles. Through the passage, the mesh of the second screen can allow the powder to pass, the diameter of the qualified pellets is smaller than the mesh of the first screen and larger than the mesh of the second screen, and the qualified pellets sieved by the linear sieve 423 are granulated. The first outlet of the assembly 42 flows out and enters the pellet silo 43; the sieved powder flows out through the second outlet of the pelletizing assembly 42 and returns to the first suction hopper 41, again performing the granulation process; The pellets cannot pass through the first screen and are directly carried away by the linear screen 423.

In the entire composite heat storage material automatic preparation device, since the purity of the finished product is high, impurities and moisture in the device may affect the quality of the finished product, and therefore, a dust removing mechanism is provided, and the dust removing mechanism and the negative pressure conveying are respectively performed. The dosing mechanism 1, the mixing mechanism 2, the packaging mechanism 3 and the plurality of bins of the granulating mechanism 4 are connected, and the dust removing mechanism is arranged to remove dust inside the device before the operation of the above mechanism, thereby avoiding factors affecting the purity of the finished product.

The automatic heat storage material automatic preparation device provided by the embodiment provides the automatic and continuous compounding of the composite heat storage material by providing the negative pressure conveying and batching mechanism 1, the mixing mechanism 2, the packaging mechanism 3 and the electronic control mechanism 10. Wherein, the electronic control mechanism 10 controls the batching of the negative pressure conveying and batching mechanism 1 according to the input raw material ratio, the batching process is convenient, the amount of each raw material is accurate, and the ratio is accurate; the negative pressure conveying and batching mechanism 1 is set to be more The raw materials are conveyed to the mixing mechanism 2 according to the ratio; the mixing mechanism 2 mixes the plurality of raw materials; the packaging mechanism 3 is set as the finished product; and the electronic control mechanism 10 is arranged to control the automatic operation of the plurality of mechanisms. Each process of the composite heat storage material automatic preparation device is continuously and automatically operated, and has high production efficiency and low labor consumption.

Claims

An automatic preparation device for composite heat storage materials, comprising:

a negative pressure conveying and dispensing mechanism (1), the negative pressure conveying and dispensing mechanism (1) comprising a plurality of branches;

First line (13);

a mixing mechanism (2), the inlet of the mixing mechanism (2) is connected to the outlet of the negative pressure conveying and dispensing mechanism (1) through the first line (13), the negative pressure conveying and dispensing mechanism (1) Provided to deliver a plurality of raw materials to the mixing mechanism (2) according to a ratio;

Second conduit (23);

a packaging mechanism (3), the inlet of the packaging mechanism (3) is in communication with the outlet of the mixing mechanism (2) through the second conduit (23), and the packaging mechanism (3) is arranged to dispense the finished product; and

An electric control mechanism (10) is respectively connected to the negative pressure conveying and dispensing mechanism (1), the packaging mechanism (3) and the mixing mechanism (2), and the electronic control mechanism (10) is set according to an input Raw material ratio controlling the ingredients of the negative pressure conveying and batching mechanism (1), and controlling the negative pressure conveying and batching mechanism (1), the mixing mechanism (2), the packaging mechanism (3), and the electronic control The operation of the agency (10).
The composite heat storage material automatic preparation device according to claim 1, wherein the vacuum conveying and dispensing mechanism (1) comprises:

a discharge assembly (11), the discharge assembly (11) being arranged to discharge material in the ton bag;

A crushing assembly (12), an inlet of the crushing assembly (12) is connected to an outlet of the discharge assembly (11), and an outlet of the crushing assembly (12) is connected to an inlet of the first conduit (13).
The composite heat storage material automatic preparation apparatus according to claim 1, wherein the mixing mechanism (2) comprises a plurality of mixing components, the mixing component comprising:

a mixing bin (21), an inlet of the mixing bin (21) is connected to an outlet of the first conduit (13);

a cone mixer (22), an inlet of the cone mixer (22) is connected to an outlet of the mixing bin (21), and an outlet of the cone mixer (22) is connected to the second conduit (23) Entrance.
The composite heat storage material automated preparation apparatus according to claim 1, wherein said packaging mechanism (3) comprises a finished silo (31) and a packaging assembly (32), and an inlet connection of said finished silo (31) The outlet of the second conduit (23) is arranged to be connected to the outlet of the finished silo (31) and to quantitatively package the finished product.
The composite heat storage material automatic preparation apparatus according to claim 4, wherein said packaging assembly (32) comprises a first packaging production line (321) and a second packaging production line (322), said first packaging production line (321) The size of the second packaging line (321) and the second packaging line (322) are each connected to the outlet of the finished silo (31).
The composite heat storage material automatic preparation device according to claim 5, wherein the packaging mechanism (3) further comprises a screw conveyor disposed between the finished product silo (31) and the packaging assembly (32) (33), an inlet of the auger (33) is connected to an outlet of the finished silo (31), the auger (33) comprising a first outlet and a second outlet, the first outlet and The first packaging line (321) is connected, and the second outlet is connected to the second packaging line (322).
The composite heat storage material automatic preparation device according to claim 6, further comprising a granulation mechanism (4), the granulation mechanism (4) comprising:

a first suction hopper (41), an inlet of the first suction hopper (41) is connected to an outlet of the finished silo (31), and the first suction hopper (41) is arranged to suck powder;

a granulation unit (42), an inlet of the granulation unit (42) is connected to an outlet of the first suction hopper (41), and the granulation unit (42) granulates the powder;

a pellet silo (43) having an inlet connected to an outlet of the pelletizing assembly (42) and a pellet silo (43) configured to receive pellets, the pellets The outlet of the cartridge (43) is connected to the inlet of the packaging assembly (32), and the pellet silo (43) is also arranged to deliver pellets to the packaging assembly (32) for packaging.
The composite heat storage material automated preparation apparatus according to claim 7, wherein the granulation assembly (42) comprises:

a roller press (421), an inlet of the pair of roll presses (421) is connected to an outlet of the first suction hopper (41);

a granulator (422), an inlet of the granulator (422) is connected to an outlet of the pair of roll presses (421);

A linear screen (423) is located below the outlet of the granulator (422) and a linear screen (423) is provided to screen the pellets and powder.
The composite heat storage material automatic preparation device according to claim 8, wherein the linear sieve (423) comprises a first screen and a second screen which are arranged in a stack, the mesh of the first screen is larger than a mesh of the second screen, the mesh of the first screen is arranged to pass the granular material and the pellets having a diameter within a preset range, and the mesh of the second screen is set to supply powder Passing through, the first outlet of the granulation unit (42) is connected to the inlet of the pellet silo (43), and the granulation assembly (42) is arranged to screen the linear screen (423) Pellets having a diameter within a predetermined range are delivered to the pellet silo (43), and a second outlet of the pelletizing assembly (42) is coupled to an inlet of the first suction hopper (41), The granulation assembly (42) is also arranged to deliver the sifted powder of the linear screen (423) to the first suction hopper (41).
The composite heat storage material automatic preparation device according to claim 7, further comprising a dust removing mechanism, wherein the dust removing mechanism and the negative pressure conveying and dispensing mechanism (1), the mixing mechanism (2), and the packaging mechanism ( 3) communicating with a plurality of chambers of the granulation mechanism (4).