CN213792827U

CN213792827U - Novel gas-solid fluidized bed sorting device

Info

Publication number: CN213792827U
Application number: CN202022939818.3U
Authority: CN
Inventors: 温德扬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-27
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a novel gas-solid fluidized bed sorting unit, the device has optimized gaseous supply system. In the separation process, one part of gas is directly provided by the air supply device, the other part of gas is provided by the gas separation device, the two parts of gas jointly promote the suspension of the heavy particles under the action of the gas, so that the bed layer forms a fluid-like body with certain density, the mineral to be selected is separated in the bed layer according to the density, the mineral with the density higher than the density of the bed layer sinks into the bottom to form a heavy product, the mineral with the density lower than the density of the bed layer floats on the surface of the bed layer to form a light product, and the effective separation of the mineral is finally completed. The device can flexibly adjust the circulation volume of gas, reduce the energy consumption of gas, reduce energy loss, and does not involve water, thereby avoiding the secondary pollution problem and a complex slime water treatment system.

Description

Novel gas-solid fluidized bed sorting device

Technical Field

The utility model relates to a mineral processing selects separately the field, concretely relates to novel gas-solid fluidized bed is selected separately device.

Background

Mineral processing and sorting is an applied technical subject for researching mineral separation, and aims to separate useful minerals from gangue (useless) minerals by adopting an effective means. The principle is that based on the density, surface property, dielectric constant and other differences of coal and other minerals, a reasonable sorting system is utilized to realize the separation of different minerals. At present, the traditional separation process mainly adopts wet gravity separation and flotation separation, realizes the separation of coal and gangue by means of flow pattern transformation of gas-liquid two-phase flow, interphase energy transfer and other mechanisms, and mainly adopts a jigger, a swirler, a wet gravity medium separation system, a flotation machine, an interference bed separator and the like. However, the shortage of water resources has become a global problem, and the traditional separation method has been greatly limited and cannot adopt large-scale mineral wet separation equipment. In addition, in severe cold areas such as northeast China, products subjected to wet separation can be difficult to load and unload, transport and the like, and the difficulty of mineral separation is increased to a certain extent. With the increasingly prominent problems, dry separation has gradually become a hot topic of coal separation, and a great deal of research is carried out by various national scholars, and dry separation systems such as a composite dry separation system, an air jigger, an air jet flow mineral particle separation device and the like are developed. At present, the air dense medium fluidized bed has higher sorting precision and has realized industrialized production. In order to further reduce the energy loss in the separation process, the invention provides a novel gas-solid fluidized bed separation device.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a novel gas-solid fluidized bed sorting unit reduces the gas energy loss, improves the efficiency that the mineral was selected separately.

In order to achieve the above object, the utility model discloses a following technical scheme realizes: the utility model provides a novel gas-solid fluidized bed sorting unit, includes gaseous device, fluidized bed sorter and gas separation device of giving into, fluidized bed sorter bottom entrance point intercommunication is provided with the air chamber, one side entering end intercommunication of air chamber bottom the gaseous device of giving into, the opposite side entering end of air chamber bottom passes through two intercommunications of gas recovery pipeline gas separation device's exit end, gas separation device's entrance point and fluidized bed sorter's top exit end intercommunication set up.

Furthermore, the bottom of the fluidized bed separator is provided with heavy particles, the bed layer forms fluid-like bodies with certain density through the heavy particles, the mineral to be selected is separated in the bed layer according to the density, the mineral with the density smaller than the density of the bed layer floats on the surface of the bed layer to form a light product, and the mineral with the density larger than the density of the bed layer sinks into the bottom to form a heavy product.

Furthermore, the upper part of the fluidized bed separator is communicated with the gas-solid recovery chamber through a filter screen, and the bottom part of the fluidized bed separator is communicated with the air chamber through an air distribution plate.

Further, the gas feeding device is communicated with the air chamber through a first airflow valve and a switching valve in sequence.

Further, the inlet end of the gas separation device is communicated with the gas-solid recovery chamber through a gas recovery pipeline I, and a gas flow valve II is installed on the gas recovery pipeline I to control the output value of the flowing gas flow.

Furthermore, a pressure gauge II and an airflow valve III are sequentially arranged from the gas recovery pipeline II to the air chamber, the airflow value is controlled through the pressure gauge II, and the airflow switch is controlled through the airflow valve III.

To sum up, the utility model provides a novel gas-solid fluidized bed sorting unit through improving the gas circulation volume, can reduce gaseous consumption, has not only practiced thrift a large amount of water resources, does not involve water moreover, has avoided secondary pollution problem and complicated coal slime water processing system, and the system layout is simple, can effectively practice thrift the cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

in the figure: the device comprises a gas feeding device 1, a pressure gauge I2, an airflow valve I3, an air chamber 4, an air distribution plate 5, a fluidized bed separator 6, heavy particles 7, light products 8, heavy products 9, a filter screen 10, a gas-solid recovery chamber 11, an airflow valve II 12, a gas recovery pipeline I13, a gas separation device 14, a gas recovery pipeline II 15, a pressure gauge II 16 and an airflow valve III 17.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in figure 1, the utility model discloses a novel gas-solid fluidized bed sorting unit, contain gas feeding device 1, fluidized bed sorter 6, gas separation device 14. In the sorting process, one part of gas is directly supplied by the gas feeding device 1, the other part of gas is supplied by the gas separation device 14, the two parts of gas jointly promote the suspension of the heavy particles 7 under the action of the gas, so that the bed layer forms fluid-like bodies with certain density, the mineral to be sorted is sorted in the bed layer according to the density, the mineral with the density smaller than the density of the bed layer floats on the surface of the bed layer to form a light product 8, the mineral with the density larger than the density of the bed layer sinks into the bottom to form a heavy product 9, and finally the effective sorting of the mineral is completed.

The device comprises a gas feeding device 1, a pressure gauge I2, a gas flow valve I3, an air chamber 4, an air distribution plate 5, a fluidized bed separator 6, heavy particles 7, light products 8, heavy products 9, a filter screen 10, a gas-solid recovery chamber 11, a gas flow valve II 12, a gas recovery pipeline I13, a gas separation device 14, a gas recovery pipeline II 15, a pressure gauge II 16 and a gas flow valve III 17; a first airflow valve 3 is connected with the gas feeding device 1, a first pressure gauge 2 is arranged between the first airflow valve 3 and the gas feeding device 1, an air chamber 4 is connected with the first airflow valve 3, an air distribution plate 5 is connected with the air chamber 4, a fluidized bed separator 6 is connected with the air distribution plate 5, heavy particles 7 are arranged in the fluidized bed separator 6, the light product 8 floats on the surface of the heavy particles 7, the heavy product 9 sinks to the bottom of the heavy particles 7, the filter screen 10 is arranged at the upper part of the fluidized bed separator 6, the gas-solid recovery chamber 11 is connected with the gas-solid recovery chamber, the gas flow valve II 12 is connected with the gas-solid recovery chamber 11 and the gas recovery pipeline I13, the gas recovery pipeline I13 is connected with the gas separation device 14, the gas recovery pipeline II 15 is connected with the gas separation device 14 and the gas flow valve III 17, the pressure gauge II 16 is installed between the gas recovery pipeline II 15 and the gas flow valve III 17, and the gas flow valve III 17 is installed between the air chamber 4 and the pressure gauge II 16.

Further, the air volume of the gas feeding device 1 is controlled by adjusting the first air flow valve 3, the first pressure gauge 2 displays the pressure value of the gas, the air enters the air chamber 4 to be stored for a short time, the gas is further uniformly distributed in the fluidized bed separator 6 under the action of the air distribution plate 5, the heavy particles 7 are suspended under the action of the gas, a similar fluid with certain density is formed in a bed layer, the mineral to be selected is separated in the bed layer according to the density, the mineral with the density smaller than the density of the bed layer floats on the surface of the bed layer to form a light product 8, the mineral with the density larger than the density of the bed layer sinks into the bottom to form a heavy product 9, part of the heavy particles 7 are collected by a filter screen 10 in the outflow process, the outflow gas further enters the gas-solid recovery chamber 11, the gas flow rate is controlled by the second air flow valve 12, the gas enters the gas separation device 14 through the first gas recovery pipeline 13 and then enters the second gas recovery pipeline 15, the second pressure gauge 16 displays the gas pressure value, and further adjusts the first airflow valve 3, the second airflow valve 12 and the third airflow valve 17 to control the air volume of the air supply device 1 and the air volume of the gas separation device 14, so that the gas consumption is reduced.

To sum up, the utility model provides a novel gas-solid fluidized bed sorting unit through improving the gas circulation volume, can reduce gaseous consumption, has not only practiced thrift a large amount of water resources, has not related to water moreover, has avoided secondary pollution problem and complicated coal slime water processing system, because its system layout is simple, can effectively practice thrift the cost.

While only the preferred embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a novel gas-solid fluidized bed sorting unit, its characterized in that, includes that gas gives into device (1), fluidized bed sorter (6) and gas separation device (14), fluidized bed sorter (6) bottom entrance point intercommunication is provided with air chamber (4), one side inlet end intercommunication of air chamber (4) bottom gas gives into device (1), the opposite side inlet end of air chamber (4) bottom passes through gas recovery pipeline two (15) intercommunication the exit end of gas separation device (14), the entrance point of gas separation device (14) and the top outlet end intercommunication setting of fluidized bed sorter (6).

2. The novel gas-solid fluidized bed separation device is characterized in that heavy particles (7) are arranged at the bottom of the fluidized bed separator (6), the bed layer is formed into a fluid-like body with certain density through the heavy particles (7), the mineral to be separated is separated in the bed layer according to the density, the mineral with the density smaller than the density of the bed layer floats on the surface of the bed layer to form a light product (8), and the mineral with the density larger than the density of the bed layer sinks into the bottom to form a heavy product (9).

3. A novel gas-solid fluidized bed separation device according to claim 1 or 2, characterized in that the upper part of the fluidized bed separator (6) is communicated with the gas-solid recovery chamber (11) through a filter screen (10), and the bottom part is communicated with the air chamber (4) through an air distribution plate (5).

4. The novel gas-solid fluidized bed separation device is characterized in that the gas feeding device (1) is communicated with the air chamber (4) through a pressure gauge I (2), a gas flow valve I (3) and a switch valve in sequence to form gas flow control on the gas feeding device (1).

5. The novel gas-solid fluidized bed separation device according to claim 1, characterized in that the inlet end of the gas separation device (14) is communicated with the gas-solid recovery chamber (11) through a first gas recovery pipeline (13), and a second gas flow valve (12) is installed on the first gas recovery pipeline (13) to control the output value of the flowing gas flow.

6. The novel gas-solid fluidized bed separation device according to claim 1, wherein a second pressure gauge (16) and a third airflow valve (17) are sequentially arranged between the second gas recovery pipeline (15) and the air chamber (4), the second pressure gauge (16) is used for controlling the airflow value, and the third airflow valve (17) is used for controlling the airflow switch.