CN218656047U

CN218656047U - Drying, crushing and screening integrated preparation unit

Info

Publication number: CN218656047U
Application number: CN202223106789.8U
Authority: CN
Inventors: 刘宇慧; 贾宝华; 赵黄经; 赵强; 石景珩; 于文剑
Original assignee: Mining Environmental Protection Technology Shanghai Co ltd; Inner Mongolia Baoyi Environmental Protection New Material Co ltd
Current assignee: Mining Environmental Protection Technology Shanghai Co ltd; Inner Mongolia Baoyi Environmental Protection New Material Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a drying, crushing and screening integrated preparation unit, which comprises a first fan, a heating device, a crushing device, a lifting cylinder and a dust remover; the advantages are that: the material in the bin is conveyed into a crushing device through a screw conveyor, a filter cake is subjected to primary crushing under the action of the screw conveyor, air is heated under the action of a first fan and a heating device and then conveyed into the crushing device at a high speed, the primary crushed material is dried, and meanwhile, the filter cake after primary crushing is collided with each other under the action of high-speed airflow to carry out micro powder crushing; the light micro powder in the crushing device is conveyed into the dust remover along the ascending pipe under the action of the dust remover and the second fan, after dust falling treatment is carried out in the dust remover, the micro powder is discharged from the bottom outlet of the dust remover and packaged, and the rest materials are further collided with each other under the action of air flow to realize crushing; drying, crushing and separation are finished in a crushing device through reasonable design.

Description

Drying, crushing and screening integrated preparation unit

The technical field is as follows:

the utility model relates to a slag utilizes technical field, concretely relates to preparation unit of drying, breakage and screening integration.

Background art:

the steel slag is a by-product produced in the steel-making process, and contains various oxides and salts produced by reaction of these oxides and flux, in order to fully reuse the steel slag and reduce secondary pollution, its publication No. CN 104828850A-a method for preparing high-purity light calcium carbonate by using steel slag. Said system is disclosed in a, grinding the steel slag into powder (300-400 meshes), placing it in acetic acid whose concentration is 0.5%, solid-to-liquid ratio is 1: 100, temp. is 20 deg.C, making solution, fully stirring, filtering and clarifying. b. Adjusting pH of the above solution to 7 with sodium hydroxide, heating to 75 deg.C, separating silicate, stirring, filtering, and clarifying. c. Adjusting the pH value of the solution after the silicate is separated to 10-12, separating out impurity ions of Mn, fe, P and Zn, fully stirring, filtering and clarifying. d. Introducing carbon dioxide gas into the solution until the reaction solution is less than or equal to 7, and then dehydrating, washing, drying, cooling, crushing and screening.

At present, the preparation process of the reaction liquid in the preparation unit needs to be carried out in sequence in a plurality of devices, and mainly comprises the steps of filter press dehydration, drying by a dryer, crushing by a crusher and screening by a screening machine, so that the operation process is complicated, the devices occupy the service area of a plant area, and the transportation cost is high.

The utility model has the following contents:

an object of the utility model is to provide a preparation unit of drying, breakage and screening integration.

The utility model discloses by following technical scheme implement: the drying, crushing and screening integrated preparation unit comprises a first fan, a heating device, a crushing device, an ascending cylinder and a dust remover;

the export of first fan with heating device's entry pipe connection, heating device's export with breaker's first entry pipe connection, breaker's the fixed intercommunication in top a section of thick bamboo that rises, the bottom of a section of thick bamboo that rises is connected with the feed bin through screw conveyer, the top of a section of thick bamboo that rises is connected with through the dust absorption pipe the dust remover, the exit linkage of dust remover has the second fan.

Furthermore, the crushing device also comprises a high-pressure gas injection pipe, and the bottom end of the crushing device is fixedly communicated with the high-pressure gas injection pipe.

Furthermore, an inlet of the high-pressure gas injection pipe is fixedly communicated with an outlet of a high-pressure gas source.

Further, the inlet of the high-pressure gas injection pipe is fixedly communicated with the outlet of the heating device.

Further, the crushing device is characterized by comprising a shell, wherein a stirring shaft is rotatably connected to the bottom end of the shell, a cutter is fixed on the stirring shaft, a driving motor is fixed on the outer wall of the bottom end of the shell, and an output shaft of the driving motor is fixedly connected with the stirring shaft.

Further, the heating device is an electric heater.

Further, the outlet of the heating device is arranged along the tangential direction of the crushing device.

The utility model has the advantages that: the material in the bin is conveyed into a crushing device through a screw conveyor, a filter cake is subjected to primary crushing under the action of the screw conveyor, air is heated under the action of a first fan and a heating device and then conveyed into the crushing device at a high speed, the primary crushed material is dried, and meanwhile, the filter cake after primary crushing is collided with each other under the action of high-speed airflow to carry out micro powder crushing;

the light micro powder in the crushing device is conveyed into the dust remover along the ascending pipe under the action of the dust remover and the second fan, after dust falling treatment is carried out in the dust remover, the micro powder is discharged from the bottom outlet of the dust remover and packaged, and the rest materials are further collided with each other under the action of air flow to realize crushing;

drying, smashing, separation are arranged in the breaker through reasonable design and are accomplished, the device simple structure, it is with low costs, solved among the prior art equipment and taken the problem that the factory made the area more, saved conveying cost simultaneously, the device simple structure and practicality.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the utility model;

in the figure: the device comprises a first fan 1, a heating device 2, a crushing device 3, a lifting cylinder 4, a spiral conveyor 5, a storage bin 6, a dust suction pipe 7, a dust remover 8, a second fan 9, a high-pressure air jet pipe 10, a shell 31, a stirring shaft 32, a cutter 33 and a driving motor 34.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the drying, crushing and screening integrated preparation unit comprises a first fan 1, a heating device 2, a crushing device 3, a lifting cylinder 4 and a dust remover 8;

the export of first fan 1 and heating device 2's entry pipe connection, first fan 1 is high pressure positive blower, heating device 2's export and crushing device 3's first entry pipe connection, the fixed intercommunication of crushing device 3's top rises a section of thick bamboo 4, and the bottom of a section of thick bamboo 4 that rises is passed through screw conveyer 5 and is connected feed bin 6, and the top of a section of thick bamboo 4 that rises is passed through dust absorption pipe 7 and is connected dust remover 8, the exit linkage second fan 9 of dust remover 8.

The material in the bin 6 is conveyed into the crushing device 3 through the screw conveyer 5, the filter cake is subjected to primary crushing under the action of the screw conveyer 5, the air is heated under the action of the first fan 1 and the heating device 2 and then conveyed into the crushing device 3 at a high speed, the primary crushed material is dried, and meanwhile, the filter cakes subjected to primary crushing mutually collide under the action of high-speed airflow to carry out micro powder crushing; the method comprises the following steps that (1) micro powder with lighter weight in a crushing device 3 is conveyed into a dust remover 8 along an ascending pipe under the action of the dust remover 8 and a second fan 9, dust falling treatment is carried out in the dust remover 8, the micro powder is discharged from a bottom outlet of the dust remover 8 and packaged, the rest materials are further collided with each other under the action of air flow to realize crushing, and drying, crushing and separation are finished in the crushing device 3 through reasonable design, so that the device is simple in structure and low in cost; the problem of among the prior art equipment occupy the factory floor usable floor area more is solved, the cost of transportation has been saved simultaneously.

The crushing device also comprises a high-pressure gas injection pipe 10, and the bottom end of the crushing device 3 is fixedly communicated with the high-pressure gas injection pipe 10. Accessible high-pressure air ejector pipe 10 is ventilated to breaker 3 inside, prevents the material adhesion, makes the coarse grain that moves to breaker 3 bottom blown once more, and gets into the region of high flow rate and smashes to avoid the coarse grain to deposit in breaker 3, improved breaker 3's work efficiency.

The inlet of the high-pressure gas injection pipe 10 is fixedly communicated with the outlet of a high-pressure gas source, the inlet of the high-pressure gas injection pipe 10 is fixedly communicated with the outlet of the heating device 2, compressed air can be used as a gas source of the high-pressure gas injection pipe 10, gas heated by the heating device 2 can also be used, and materials at the bottom of the crushing device 3 can be dried.

Breaker 3 includes casing 31, casing 31's bottom is rotated and is connected with (mixing) shaft 32, be fixed with cutter 33 on the (mixing) shaft 32, be fixed with driving motor 34 on casing 31's the bottom outer wall, driving motor 34's output shaft and (mixing) shaft 32 fixed connection, under cutter 33 effect, break up the filter cake into the coarse grain, cooperation high-pressure jet pipe 10 blows the coarse grain and breaks into the miropowder with each other striking under the effect of the high velocity gas stream after the heating.

Heating device 2 is electric heater, heating device 2's export sets up along breaker 3's tangential direction, the air current after the heating is the whirl state and rises along the tedge, the material is rotary motion in breaker 3 inside, coarse grain in the motion gets into the periphery of gyration stream because of receiving great centrifugal force, and downstream, finally get back to breaker 3's bottom, because the centrifugal force that tiny granule received is less, be in the gyration stream center and along with the gyration stream upward movement, get into dust remover 8 at last, the separation effect of coarse grain and miropowder has been increased, the path length of material spare collision has been increased simultaneously.

The specific operation process of the embodiment is as follows:

dehydrating the reaction liquid to prepare high-purity light calcium magnesium carbonate, and performing filter pressing through a filter press in the dehydration stage to obtain a filter cake material which is sent into a bin 6;

the materials in the bin 6 are conveyed into the crushing device 3 through the screw conveyer 5, and the filter cake is primarily crushed under the action of the screw conveyer 5;

the heating device 2 heats high-speed air, the air is heated and then is sent into the crushing device 3 at a high speed, the primary crushed material is dried, and simultaneously filter cakes after primary crushing mutually collide under the action of high-speed airflow to carry out micro powder crushing;

the micro powder with lighter weight in the crushing device 3 is conveyed into the dust remover 8 along the ascending pipe under the action of the dust remover 8 and the second fan 9, after dust falling treatment is carried out in the dust remover 8, the micro powder is discharged through a bottom outlet of the dust remover 8 and packaged, and the residual coarse particle materials are further crushed by mutual collision under the action of air flow.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The drying, crushing and screening integrated preparation unit is characterized by comprising a first fan, a heating device, a crushing device, a lifting cylinder and a dust remover;

the export of first fan with heating device's entry pipe connection, heating device's export with breaker's first entry pipe connection, breaker's the fixed intercommunication in top a section of thick bamboo that rises, the bottom of a section of thick bamboo that rises is passed through screw conveyer and is connected the feed bin, the top of a section of thick bamboo that rises is passed through the dust absorption union coupling the dust remover, the exit linkage of dust remover has the second fan.

2. The integrated drying, crushing and screening preparation unit of claim 1, further comprising a high pressure gas injection pipe, wherein the bottom end of the crushing device is fixedly communicated with the high pressure gas injection pipe.

3. The integrated drying, crushing and screening preparation unit of claim 2, wherein the inlet of the high pressure gas lance is in fixed communication with the outlet of the high pressure gas source.

4. The integrated drying, crushing and screening preparation unit of claim 2, wherein the inlet of the high pressure gas lance is in fixed communication with the outlet of the heating device.

5. The integrated drying, crushing and screening preparation unit according to any one of claims 1 to 4, wherein the crushing device comprises a shell, a stirring shaft is rotatably connected to the bottom end of the shell, a cutter is fixed on the stirring shaft, a driving motor is fixed on the outer wall of the bottom end of the shell, and an output shaft of the driving motor is fixedly connected with the stirring shaft.

6. The integrated drying, crushing and screening preparation unit of claim 5, wherein the heating device is an electric heater.

7. The integrated drying, crushing and screening preparation unit according to claim 6, wherein the outlet of the heating device is arranged in a tangential direction of the crushing device.