CN212383861U

CN212383861U - Efficient sand making building comprising closed-cycle wind power screening system

Info

Publication number: CN212383861U
Application number: CN202021888994.2U
Authority: CN
Inventors: 王兴乾; 王卫; 刘海淘
Original assignee: Henan Zhongyu Dingli Intelligent Equipment Co ltd
Current assignee: Henan Zhongyu Dingli Intelligent Equipment Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-01-22
Anticipated expiration: 2030-09-02

Abstract

A high-efficiency sand making building comprising a closed-loop circulating wind screening system comprises a rigid building body provided with a plurality of layers of platforms, and further comprises a storage bin, a hoisting machine, an impact crusher, a winnowing and dust removing device, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the upper end of the hoisting machine is connected with the impact crusher through the conveying device, a discharge port at the lower end of the impact crusher is connected with the winnowing and dust removing device at the lower layer, the winnowing and dust removing device is connected with the sealing screening device at the lower layer in a sealing manner, and the sealing screening device is provided with a coarse; the core equipment comprises a closed circulating air structure, a winnowing dust removal device and a sealing screening device, the closed circulating air structure can effectively reduce energy consumption and pollution to the environment, and the sorting effect is improved; the sorting and dust removing device can be beneficial to adjusting the modulus of the fine granularity of the machine-made sand and reducing the load of subsequent screening equipment; the sealing screening device can control the control sand grading particles; the height of the sand making building can be reduced, and the vibration quantity of the whole set of sand making building can be reduced.

Description

Efficient sand making building comprising closed-cycle wind power screening system

Technical Field

The utility model relates to a grit aggregate production technical field, in particular to high-efficient system sand building including closed circulation wind-force screening system.

Background

With the continuous development of economy in China, various large-scale building projects are gradually increased, the performance requirements on concrete are higher and higher, and the performance of sandstone which is used as a raw material with the highest proportion in the concrete directly influences the workability, mechanical property and durability of high-performance concrete. In the existing major projects, almost all important structures require high-performance concrete, and the sand of the high-performance concrete must be natural sand to ensure the performance of the high-performance concrete. Natural sand as a non-renewable resource is exhausted, the exploitation of natural sand causes serious damage to the environment, a series of environmental protection problems are brought, and the preparation of concrete by adopting high-quality fine sand instead of natural sand becomes an important requirement and trend for social development.

A fine sand aggregate production system (namely a fine machine-made sand production line) can produce required fine sand or fine sand according to the proportion according to the requirements and requirements of the concrete proportion and the mortar proportion, and the sand making process comprises the following steps: the vibration feeder conveys stone materials to a sand making machine for crushing and making sand; and the part meeting the requirement of the particle size after dust removal and screening is finished sand, and the part not meeting the requirement of the particle size enters the sand making machine again to be crushed again. The degree distribution of the machine-made sand grains is uniform, the gradation is stable, and the grain size can be adjusted according to the aggregate requirement required by the dry-mixed mortar; the produced finished sand has no mud content, the powder content is adjustable and controllable, part of micro-fine powder can replace part of cement, and the prior sand making building has the following defects: the method has the advantages of more equipment, high power, large investment, large occupied area, strict requirements on raw materials, weak processing capacity, difficulty in controlling the proportion of stone powder contained in the machine-made sand and high dust removal cost; in addition, dust produced in the sand making process has great pollution to the environment, and is not beneficial to the management of the environment and the health of workers.

There is a need for an efficient sand producing building that includes a closed-loop wind screening system to address this problem.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a high-efficient sand making building comprising a closed-loop circulating wind power screening system, which effectively solves the problems.

The technical scheme who solves is, the utility model discloses a rigidity building body with multilayer platform, still include the feed bin that sets up in the rigidity building body, the lifting machine, strike brokenly, selection by winnowing dust collector, sealed screening plant and conveyor, the feed bin passes through conveyor and is connected with the lower extreme of lifting machine, the upper end of lifting machine passes through conveyor and strikes brokenly to be connected, the discharge gate that strikes brokenly the lower extreme is connected with the selection by winnowing dust collector of lower floor, selection by winnowing dust collector and the sealed screening plant sealing connection of lower floor, be equipped with coarse fodder end and thin fodder end on the sealed screening plant, coarse fodder end is connected with the lower extreme of lifting machine, thin fodder end is connected with the wet machine of mixing that sets up in sealed screening;

the winnowing dust removal device comprises an air winnowing chamber, a circulating centrifugal fan, a sand-stone separator and a dynamic powder selector, wherein the upper end of the air winnowing chamber is connected with an impact broken discharge port, the left end of the winnowing chamber is connected with the circulating centrifugal fan, the upper right end of the winnowing chamber is connected with the sand-stone separator, the lower end of the sand-stone separator is connected with a fine material end on the sealed screening device through a conveying device, the dynamic powder selector is arranged on the upper side of the sand-stone separator, a feed port of the dynamic powder selector is connected with a discharge port of the sand-stone separator, and an air outlet on the dynamic powder selector is communicated with the circulating centrifugal fan through a pipeline, so that the air winnowing chamber, the circulating centrifugal fan, the sand-stone separator and the dynamic powder selector form closed gas circulation, and a discharge port at the lower end of.

The utility model has the advantages that: the core equipment of the utility model is a closed circulation air structure, a winnowing dust removal device and a sealing screening device, the closed circulation air structure can effectively reduce energy consumption and pollution to the environment, and improve the sorting effect; the sorting and dust removing device can be beneficial to adjusting the modulus of the fine granularity of the machine-made sand and reducing the load of subsequent screening equipment; the sealing screening device can control the control sand grading particles; the utility model discloses the equipment occupation space who adopts in the ratio former system is few, can reduce the height of system sand building, in addition, places the vibration volume at the reducible whole set of system sand building of low floor with sealed screening, has reduced dynamic load, for the stability of equipment provides normal work, can accomplish the content of adjusting fine sand simultaneously, can realize the rationality that the mechanism sand is graded and is joined in marriage.

Drawings

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

Fig. 2 is a schematic structural view of the horizontal vibration screen of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Example (b):

the utility model is shown by figures 1 to 2, the utility model comprises a rigid building body with a multilayer platform, and also comprises a material bin 1 arranged in the rigid building body, a hoisting machine 2, an impact breaker 3, a winnowing and dust removing device, a sealing and screening device and a conveying device, wherein the material bin 1 is connected with the lower end of the hoisting machine 2 through the conveying device, the material bin 1 and the hoisting machine 2 are respectively a buffer material bin and a bucket type hoisting machine, the impact breaker 3 is a vertical shaft type impact breaker, the upper end of the hoisting machine 2 is connected with the impact breaker 3 through the conveying device, namely, the hoisting machine 2 lifts the materials sent out from the material bin 1 to a high place and sends the materials into the impact breaker 3 for crushing, a discharge port at the lower end of the impact breaker 3 is connected with the winnowing and dust removing device at the lower layer, the crushed stones are subjected to powder removal through the winnowing and dust removing device, the winn, the sealing and screening device is provided with a coarse material end and a fine material end, the coarse material end is connected with the lower end of the elevator 2, the fine material end is connected with the wet mixing machine 27 arranged at the lower layer of the sealing and screening device, so that screened materials with overlarge particle sizes are sent into the lower end of the elevator 2 through the coarse material end to be crushed again, screened stones with qualified particle sizes are sent into the wet mixing machine 27 through the fine material end to be humidified and dedusted, and the quality of the stones is improved;

the winnowing dust removal device comprises an air winnowing chamber 4, a circulating centrifugal fan 5, a sand-stone separator 6 and a dynamic powder selector 7, wherein the upper end of the air winnowing chamber 4 is connected with a discharge port of the impact crusher 3, the left end of the air winnowing chamber 4 is connected with the circulating centrifugal fan 5, the right upper end of the air winnowing chamber 4 is connected with the sand-stone separator 6, heavy stones continuously fall down under the action of the centrifugal fan, light stones and dust are conveyed into the sand-stone separator 6 by air flow, the lower end of the sand-stone separator 6 is connected with a fine material end on the sealed screening device by a conveying device, the dynamic powder selector 7 is arranged on the upper side of the sand-stone separator 6, a feed port of the dynamic powder selector 7 is connected with a discharge port of the sand-stone separator 6, the stones and dust which enter the sand-stone separator 6 are separated in the sand-stone separator 6, the stones are conveyed into the sealed screening device by the conveying device for screening, the dust enters the dynamic powder concentrator to be collected, an air outlet on the dynamic powder concentrator 7 is communicated with the circulating centrifugal fan 5 through a pipeline, and airflow after the dust is collected by the dynamic powder concentrator 7 enters the circulating centrifugal fan 5 again, so that the air winnowing chamber 4, the circulating centrifugal fan 5, the sand-stone separator 6 and the dynamic powder concentrator 7 form closed gas circulation, the consumption of the circulating centrifugal fan 5 can be effectively reduced, the air pollution is avoided, and a discharge port at the lower end of the air winnowing chamber 4 is connected with a feed port of the sealed screening device.

The dust collection device is a pulse bag type dust collector 8, an air port of the pulse bag type dust collector 8 is connected with the impact crusher 3, and the pulse bag type dust collector 8 is connected with a dust collection fan 9 which can collect dust which is produced and flies due to crushing in the impact crusher 3.

The lower end of the sand-stone separator 6 is also connected with a chain conveyor 10, the chain conveyor 10 is connected with a powder collecting device, and the powder collecting device can be a collecting bin, a collecting hopper or a collecting box and is used for collecting powder.

The thin material end still be connected with band conveyer 11, band conveyer 11's tip is equipped with the material and collects the heap, does not need to carry out under the condition of humidification stirring to the building stones, piles up through band conveyer 11 and collects.

The conveying device comprises a quantitative belt feeder 12 connected with a lifter 2 and a storage bin 1, a fully-sealed belt conveyor 13 connected with the lifter 2 and an impact crusher 3, and a spiral conveyor 14 connected with a sand separator 6 and a fine material end on a sealed screening device.

The sealed screening device comprises a horizontal vibrating screen body 15, a sealing cover 16 is installed on the upper side of the horizontal vibrating screen body 15, a first screen 17 and a second screen 18 are installed in the horizontal vibrating screen body 15, an empty groove is formed between the right end of the first screen 17 and a feeding hole, the feeding hole in the horizontal vibrating screen body 15 is connected with the second screen 18, a discharging chamber 19 is arranged at the left end of the horizontal vibrating screen body 15, a first discharging hole 20 connected with the first screen 17 and a second discharging hole 21 communicated with the second screen 18 are formed in the discharging chamber 19, materials entering the horizontal vibrating screen body 15 are simultaneously screened through the first screen 17 and the second screen 18 respectively, medium materials screened through the first screen 17 fall on the second screen 18 for secondary screening, coarse materials screened through the first screen 17 are discharged through the first discharging hole 20, and the second screen 18 screens raw materials falling on the second screen 18 and medium materials screened through the primary screening And the fine materials in the horizontal vibrating screen body 15 fall through the second screen 18 and are discharged, the residual coarse materials and the residual medium materials are discharged through the second discharge hole 21, the receiving hopper 22 is further arranged at the lower end of the horizontal vibrating screen body 15 and can collect the fine materials, and the end part of the spiral conveyor 14 extends into the receiving hopper 22 so that the fine materials separated from sand and stones enter the receiving hopper 22 to be collected.

The coarse material end is a first pipeline 23 with one end connected with the lower end of the elevator 2 and the other end connected with the first discharge port 20 and the second discharge port 21, the first pipeline 23 sends the coarse material discharged from the first discharge port 20 and the coarse material and the medium material discharged from the second discharge port 21 to the elevator 2, the elevator 2 is crushed again, the fine material end comprises a receiving hopper 22, a second pipeline 24 and a third pipeline 25 connected to the lower end of the receiving hopper 22, the second pipeline 24 is connected with the belt conveyor 11, the third pipeline 25 is connected with the wet mixing machine 27, the second pipeline 24 and the third pipeline 25 are further provided with material distributing valves, the second pipeline 24 or the third pipeline 25 can be selected to be communicated with the receiving hopper 22, and in addition, the first pipeline 23, the second pipeline 24 and the third pipeline 25 are combined with a sealing cover 16, and the sealing performance in the horizontal vibrating screen body 15 can be maintained.

A cyclone dust collector 26 is also arranged between the air outlet of the dynamic powder selector 7 and the circulating centrifugal fan 5.

The utility model discloses when using, the bucket elevator is carried through the quantitative belt feeder batcher to the raw materials of buffer bin, transports the raw materials through the bucket elevator and strikes brokenly and carry out the breakage, and broken building stones removes powder through selection by winnowing dust collector, then gets into sealed screening plant and sieves, and the finished product thin material that forms gets into to mix wet machine 27 or pile up the collection with the utmost.

The foregoing detailed description/examples are specific embodiments of the present invention, and are intended to be illustrative of the principles of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but includes all technical aspects falling within the scope of the claims.

Claims

1. The high-efficiency sand making building comprises a closed-loop circulating wind power screening system, and comprises a rigid building body provided with a plurality of layers of platforms, and is characterized by further comprising a storage bin (1), a hoisting machine (2), an impact breaker (3), a winnowing and dust removing device, a sealing screening device and a conveying device, wherein the storage bin (1) is arranged in the rigid building body and is connected with the lower end of the hoisting machine (2), the upper end of the hoisting machine (2) is connected with the impact breaker (3) through the conveying device, a discharge port at the lower end of the impact breaker (3) is connected with the winnowing and dust removing device at the lower layer, the winnowing and dust removing device is in sealing connection with the sealing screening device at the lower layer, the sealing screening device is provided with a coarse material end and a fine material end, the coarse material end is connected with the lower end of the hoisting machine (2), and the fine material; the winnowing and dust removing device comprises an air winnowing chamber (4), a circulating centrifugal fan (5), a sand-stone separator (6) and a dynamic powder selector (7), wherein the upper end of the air winnowing chamber (4) is connected with a discharge hole of the impact breaking device (3), the left end of the air winnowing chamber (4) is connected with the circulating centrifugal fan (5), the upper right end of the air winnowing chamber (4) is connected with the sand-stone separator (6), the lower end of the sand-stone separator (6) is connected with a fine material end on the sealing screening device through a conveying device, the dynamic powder selector (7) is arranged on the upper side of the sand-stone separator (6), a feed inlet of the dynamic powder selector (7) is connected with a discharge hole of the sand-stone separator (6), an air outlet on the dynamic powder selector (7) is communicated with the circulating centrifugal fan (5) through a pipeline, so that the air winnowing chamber (4), the circulating centrifugal fan (5), the sand-stone separator (6) and the dynamic powder selector (7) form a closed gas, the discharge hole at the lower end of the air separation chamber (4) is connected with the feed inlet of the sealed screening device.

2. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, further comprising a dust removing device, wherein the dust removing device is a pulse bag type dust remover (8), an air port of the pulse bag type dust remover (8) is connected with the impact crusher (3), and a dust removing fan (9) is connected to the pulse bag type dust remover (8).

3. A high efficiency sand producing building including a closed loop wind screening system as claimed in claim 1 wherein the lower end of said sand separator (6) is further connected to a chain conveyor (10) and the chain conveyor (10) is connected to a fines collection means.

4. A high efficiency sand producing building including a closed loop wind screening system as claimed in claim 1 wherein said fines end is further connected to a belt conveyor (11) and the end of the belt conveyor (11) is provided with a material collection pile.

5. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein the conveying device comprises a quantitative belt feeder (12) connecting the elevator (2) and the storage bin (1), a fully-sealed belt conveyor (13) connecting the elevator (2) and the impact crusher (3), and a screw conveyor (14) connecting the sand separator (6) and the fine material end of the sealed screening device.

6. The high-efficiency sand making building comprising the closed-loop circulating wind power screening system according to claim 1, wherein the sealing screening device comprises a horizontal vibrating screen body (15), a sealing cover (16) is installed on the upper side of the horizontal vibrating screen body (15), a first screen (17) and a second screen (18) are installed in the horizontal vibrating screen body (15), an empty groove is formed between the right end of the first screen (17) and the feeding hole, a discharging chamber (19) is arranged at the left end of the horizontal vibrating screen body (15), a first discharging hole (20) connected with the first screen (17) and a second discharging hole (21) communicated with the second screen (18) are formed in the discharging chamber (19), and a receiving hopper (22) is further arranged at the lower end of the horizontal vibrating screen body (15).

7. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein the coarse material end is a first pipeline (23) with one end connected with the lower end of the hoister (2) and the other end connected with a first discharge port (20) and a second discharge port (21), the fine material end comprises a receiving hopper (22) and a second pipeline (24) and a third pipeline (25) connected with the lower end of the receiving hopper (22), the second pipeline (24) is connected with the belt conveyor (11), and the third pipeline (25) is connected with the wet stirring machine (27).

8. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein a cyclone dust collector (26) is further arranged between the air outlet of the dynamic powder selector (7) and the circulating centrifugal fan (5).