CN216026272U

CN216026272U - Modular combined powder selecting system

Info

Publication number: CN216026272U
Application number: CN202122218952.9U
Authority: CN
Inventors: 王卫; 王兴乾
Original assignee: Henan Zhongyu Dingli Intelligent Equipment Co ltd
Current assignee: Henan Zhongyu Dingli Intelligent Equipment Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-15
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a modular combined powder selecting system, which relates to the technical field of sandstone aggregate production and comprises a lower mounting frame and an upper mounting frame, wherein the upper mounting frame is mounted above the lower mounting frame, and the upper surface of the lower mounting frame is provided with a circulating fan, a static powder selecting machine and a screw conveyor. The system is reasonable in design structure, raw materials can be put into the buffer bin and then enter the static powder selecting machine, machine-made sand is scattered through the material blocking wear-resisting plate assembly, part of fine sand is taken away and enters the sand-stone separator through the operation of the circulating fan, and then the powder of the fine sand is separated through the dynamic powder selecting machine at the rotating speed of the impeller.

Description

Modular combined powder selecting system

Technical Field

The utility model relates to the technical field of sandstone aggregate production, in particular to a modular combined powder selecting system.

Background

The sandstone aggregate processing system is a facility for crushing, screening, washing, storing and transporting sandstone aggregates. In the hydraulic engineering construction, the sandstone aggregate processing system mostly adopts corresponding mining machinery. And according to the quantity and quality requirements of concrete engineering, the selection and the matched use are carried out by considering the material source conditions (selecting natural aggregate or artificial aggregate).

The traditional powder selecting system usually adopts an open structure form, dust pollution is serious, the power of a dust remover is increased, the winnowing effect is low, the fine sand content in finished sand is difficult to adjust by powder selecting equipment in the general powder selecting system, the whole installation period is long, and the requirement is difficult to meet. Therefore, a modular combined powder selecting system is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims to make up the defects of the prior art and provides a modular combined powder selecting system.

II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a modular combination formula selection powder system, includes mounting bracket and last mounting bracket down, goes up the mounting bracket and installs the top at mounting bracket down, and the last surface mounting of lower mounting bracket has circulating fan, static selection powder machine and screw conveyer, and the last surface mounting of going up the mounting bracket has surge bin, developments selection powder machine, grit separator and two sets of closed air separation chambers, and circulating fan's the fixed intercommunication of input has closed circulation pipeline.

Furthermore, the bottom end of the buffer bin is fixedly communicated with the upper surface of the static powder concentrator, a feeding hole is formed in the upper surface of the buffer bin, the output end of the circulating fan is fixedly communicated with the static powder concentrator, and an air volume adjusting valve is installed on the outer surface of the static powder concentrator.

Furthermore, the top end of the closed circulation pipeline is fixedly communicated with two communicating pipes, the bottom end of each communicating pipe is fixedly communicated with two backflow pipelines, and the backflow pipelines are fixedly communicated with the top of the closed air separation chamber.

Furthermore, the right end of the static powder concentrator is fixedly communicated with a sand-stone separator, the sand-stone separator is fixedly communicated with the dynamic powder concentrator, each backflow pipeline is fixedly communicated with the dynamic powder concentrator, the bottom end of the sand-stone separator is fixedly communicated with a fine sand grading automatic adjusting mechanism, and the bottom end of the fine sand grading automatic adjusting mechanism is fixedly communicated with the screw conveyor.

Thirdly), the beneficial effects are as follows:

compared with the prior art, the modular combined powder selecting system has the following beneficial effects:

the utility model can put the raw materials into the buffer bin through the integral system, then enter the static powder selecting machine, break up the machine-made sand through the material-blocking wear-resisting plate component, take away part of the fine sand into the sand-stone separator through the operation of the circulating fan, then separate the fine sand powder through the dynamic powder selecting machine through the rotating speed of the impeller, part of the fine sand enters the spiral conveyer through the fine sand grading automatic adjusting mechanism at the bottom of the sand-stone separator, finally the finished material is conveyed onto the belt through the fine sand grading automatic adjusting mechanism, the dust taken away by the dynamic powder selecting machine is secondarily separated through the return pipeline and the closed air separation chamber, the system is closed, environment-friendly, has less dust pollution, can control the component content of the machine-made sand, is modularized, and the lower mounting rack and the upper mounting rack are detachably connected, can be assembled and disassembled quickly, the construction period is short, and the production can be carried out more quickly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. a lower mounting frame; 2. mounting a frame; 3. a buffer bin; 4. a closed cycle conduit; 5. a circulating fan; 6. a dynamic powder concentrator; 7. a sand separator; 8. a closed air separation chamber; 9. fine sand grading automatic adjusting mechanism; 10. a screw conveyor; 11. static powder selecting machine; 12. a communicating pipe; 13. and (4) a return pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the present invention provides a technical solution: a modular combined powder selecting system comprises a lower mounting frame 1 and an upper mounting frame 2, wherein the upper mounting frame 2 is mounted above the lower mounting frame 1, a circulating fan 5, a static powder selecting machine 11 and a screw conveyor 10 are mounted on the upper surface of the lower mounting frame 1, a buffer bin 3, a dynamic powder selecting machine 6, a sand-stone separator 7 and two groups of closed-circuit air separation chambers 8 are mounted on the upper surface of the upper mounting frame 2, a feed opening is formed in the bottom of each closed-circuit air separation chamber 8, a closed-circuit circulating pipeline 4 is fixedly communicated with the input end of the circulating fan 5, the bottom end of the buffer bin 3 is fixedly communicated with the upper surface of the static powder selecting machine 11, a feed inlet is formed in the upper surface of the buffer bin 3, the output end of the circulating fan 5 is fixedly communicated with the static powder selecting machine 11, an air volume adjusting valve is mounted on the outer surface of the static powder selecting machine 11 and can feed raw materials into the buffer bin 3, and a material baffle wear-resistant plate assembly is arranged at the position communicated between the buffer bin 3 and the static powder selecting machine 11, raw materials can be fully scattered through keeping off the material antifriction plate subassembly when whereabouts to utilize circulating fan 5's operation down, the dust of raw materials can be detached better to the circulated air, is equipped with air regulation valve through static selection powder machine 11, can adjust the outside handle degree of opening and shutting according to what of feed volume, thereby the size of control intake can fully detach the dust in the raw materials.

The top end of the closed circulation pipeline 4 is fixedly communicated with two communicating pipes 12, the bottom end of each communicating pipe 12 is fixedly communicated with two return pipelines 13, and the return pipe 13 is fixedly communicated with the top of the closed air separation chambers 8, when the system works, dust can enter the two groups of closed air separation chambers 8 under the guidance of the circulating fan 5, most particles move from top to bottom spirally along the inner wall after the dust-containing airflow enters the closed air separation chambers 8 to form a descending outward-rotating dust-containing airflow, and the power close to the speed of the air inlet and the self gravity fall to the feed opening along the inner wall of the closed air separation chamber 8, when the rotating descending air current reaches the bottom of the closed air separation chamber 8, and then the air flow rotates upwards along the axis of the closed air separation chamber 8 to form ascending internal cyclone air flow, so that dust particles dispersed in the air flow are taken away along with the internal cyclone air flow, and the characteristics of dust collection and emission reduction are achieved.

The right end of a static powder concentrator 11 is fixedly communicated with a sand separator 7, the sand separator 7 is fixedly communicated with a dynamic powder concentrator 6, each backflow pipeline 13 is fixedly communicated with the dynamic powder concentrator 6, the bottom end of the sand separator 7 is fixedly communicated with a fine sand grading automatic adjusting mechanism 9, the bottom end of the fine sand grading automatic adjusting mechanism 9 is fixedly communicated with a screw conveyor 10, an air supplementing adjusting valve is arranged on the outer surface of the fine sand grading automatic adjusting mechanism 9, dust-containing gas can enter the sand separator 7 from the static powder concentrator 11, particles with small gravity are discharged into the dynamic powder concentrator 6 for next equipment treatment, the particles with large gravity sink along the inner wall of the sand separator 7, air supplementing can be carried out on sand in the sand separator 7 through the air supplementing adjusting valve due to the fact that the inside of the sand separator 7 is negative pressure, and then large particles sinking in the sand separator 7 are scattered again, the dust is removed, and the switch of the air supply adjusting valve can be adjusted according to the treatment capacity of the equipment, so that the powder is more thoroughly selected, and the fine sand which is more fine and has low powder content rate is obtained.

The dynamic powder concentrator 6 is internally provided with an impeller assembly which can be driven to rotate by a motor, powder-containing gas enters the dynamic powder concentrator 6 from an air outlet of the sand separator 7, the impeller assembly rotates to cut the particle size, large-particle dust is blocked outside the dynamic powder concentrator 6, smaller-particle dust enters the backflow pipeline 13 and the closed-circuit air separation chamber 8 along with the wind direction to be separated again, and the impeller assembly is mainly used for controlling the particle size in the powder-containing gas and adjusting the rotating speed of the impeller assembly according to the quantity of raw materials and the air volume so as to control the proportion of fine sand in the raw materials.

The whole system comprises the steps of firstly putting raw materials into a buffer bin 3, then feeding the raw materials into a static powder concentrator 11, scattering machine-made sand through a material blocking wear-resisting plate component, taking part of fine sand out of the machine-made sand through the operation of a circulating fan 5, feeding the part of fine sand into a sand-stone separator 7, separating the powder of the fine sand through a dynamic powder concentrator 6 at the rotating speed of an impeller, feeding the part of fine sand into a spiral conveyor 10 through a fine sand grading automatic adjusting mechanism 9 at the bottom of the sand-stone separator 7, finally conveying finished materials onto a belt through the fine sand grading automatic adjusting mechanism 9, carrying out secondary separation on dust taken out of the dynamic powder concentrator 6 through a return pipeline 13 and a closed air separation chamber 8, wherein the system is closed, environment-friendly, low in dust pollution, capable of controlling the component content of the machine-made sand, modular, and detachably connected with a lower mounting frame 1 and an upper mounting frame, the steel construction adopts the spiro union form, can fast assembly and disassembly, and construction cycle is short, can be faster produce.

The working principle is as follows: the whole system comprises the steps of firstly putting raw materials into a buffer bin 3, then feeding the raw materials into a static powder concentrator 11, scattering machine-made sand through a material blocking wear-resisting plate component, taking part of fine sand out of the machine-made sand through the operation of a circulating fan 5, feeding the part of fine sand into a sand-stone separator 7, separating the powder of the fine sand through a dynamic powder concentrator 6 at the rotating speed of an impeller, feeding the part of fine sand into a spiral conveyor 10 through a fine sand grading automatic adjusting mechanism 9 at the bottom of the sand-stone separator 7, finally conveying finished materials onto a belt through the fine sand grading automatic adjusting mechanism 9, carrying out secondary separation on dust taken out of the dynamic powder concentrator 6 through a return pipeline 13 and a closed air separation chamber 8, wherein the system is closed, environment-friendly, low in dust pollution, capable of controlling the component content of the machine-made sand, modular, and detachably connected with a lower mounting frame 1 and an upper mounting frame, can fast assembly and disassembly, construction cycle is short, can be faster produce.

Claims

1. The utility model provides a modular combination formula selection powder system, includes mounting bracket (1) and last mounting bracket (2) down, its characterized in that: go up mounting bracket (2) and install the top of mounting bracket (1) down, the last surface mounting of mounting bracket (1) has circulating fan (5), static selection powder machine (11) and screw conveyer (10) down, the last surface mounting of going up mounting bracket (2) has surge bin (3), developments selection powder machine (6), grit separator (7) and two sets of closed air separation chamber (8), the fixed intercommunication of input of circulating fan (5) has closed circulation pipeline (4).

2. A modular combined dust extraction system according to claim 1, characterised in that: the bottom of the buffer bin (3) is fixedly communicated with the upper surface of the static powder concentrator (11), a feeding hole is formed in the upper surface of the buffer bin (3), the output end of the circulating fan (5) is fixedly communicated with the static powder concentrator (11), and an air volume adjusting valve is mounted on the outer surface of the static powder concentrator (11).

3. A modular combined dust extraction system according to claim 1, characterised in that: the top end of the closed circulation pipeline (4) is fixedly communicated with two communicating pipes (12), the bottom end of each communicating pipe (12) is fixedly communicated with two backflow pipelines (13), and the backflow pipelines (13) are fixedly communicated with the top of the closed air separation chamber (8).

4. A modular combined dust extraction system according to claim 3, characterised in that: the right end of the static powder concentrator (11) is fixedly communicated with the sand-stone separator (7), the sand-stone separator (7) is fixedly communicated with the dynamic powder concentrator (6), each backflow pipeline (13) is fixedly communicated with the dynamic powder concentrator (6), the bottom end of the sand-stone separator (7) is fixedly communicated with the fine sand grading automatic adjusting mechanism (9), and the bottom end of the fine sand grading automatic adjusting mechanism (9) is fixedly communicated with the spiral conveyor (10).