Aggregate machine-made sand production line

Abstract

The utility model provides an aggregate machine-made sand production line, which relates to the technical field of machine-made sand production and comprises a first screening machine for screening aggregates, and a machine-made sand production device is arranged at an aggregate port of the first screening machine. An inlet of the crushing device is connected with aggregate screened by the first screening machine, the second screening machine is connected with a material crushing opening of the crushing device, and the bottom end of the second screening machine is provided with a sand making opening and an aggregate opening of the screening machine; the aggregate warehousing device comprises a fourth conveying belt for receiving the aggregate of the first screening machine; one part of aggregate discharged by the first screening machine passes through the machine-made sand production device to generate machine-made sand and aggregate, the other part of aggregate discharged by the first screening machine is independently discharged by a fourth conveying belt, the machine-made sand production device and the aggregate warehousing device are independently designed, and the aggregate warehousing device or the machine-made sand production device can be independently started; and the power loss of equipment during aggregate production is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand production, in particular to an aggregate machine-made sand production line. Background Art

[0002] An aggregate sand production line is a device used to produce high-quality manufactured sand. It typically includes a jaw crusher, cone crusher, impact crusher, vibrating screen, and other equipment. These devices crush and screen the raw materials, ultimately producing manufactured sand that meets the required specifications. This equipment is widely used in construction, highways, railways, water conservancy, and other fields, serving as an important alternative to traditional natural sand. The manufactured sand produced by this production line offers stable quality and uniform particle size, meeting the needs of diverse projects.

[0003] In the existing technology, when machine-made sand is produced from aggregate, plasma crushing is used to crush the 5-15mm aggregate, and then the 0-4.75mm machine-made sand is screened and stored through a screening machine. Aggregates with a particle size of 5-15mm are screened and stored from another production line through a screening machine. The entire device is convenient to use, but with the development of the market, the demand for machine-made sand changes with the market. When machine-made sand is not needed but 5-15mm aggregate is needed, the entire device still needs to be run continuously, and 5-15mm aggregate and machine-made sand are still produced at the same time, which increases the power loss of the equipment during aggregate production and increases the cost investment in the operation of the entire equipment. Utility Model Content

[0004] In order to solve the above technical problems, the utility model uses an independent design of a machine-made sand production device and an aggregate storage device. The specific technical solutions are as follows:

[0005] An aggregate machine-made sand production line includes a first screening machine for screening aggregates, an aggregate outlet of the first screening machine is provided with a machine-made sand production device, the machine-made sand production device includes a crushing device whose inlet receives the aggregate screened by the first screening machine, and a second screening machine receiving the crushing outlet of the crushing device, the bottom end of the second screening machine is respectively equipped with a material outlet for screening machine-made sand and aggregate; and an aggregate storage device is also included, which includes a fourth conveyor belt receiving the aggregate from the first screening machine.

[0006] Preferably, the machine-made sand production device further comprises a circulating conveyor belt arranged at the inlet of the crushing device, and the aggregates from the second screening machine fall on the bearing surface of the circulating conveyor belt.

[0007] Preferably, the machine-made sand production device further includes a first conveyor belt arranged between the first screening machine and the crushing device, and a second conveyor belt arranged between the crushing device and the second screening machine.

[0008] Preferably, the aggregate on the bearing surface of the circulating conveyor belt falls to the bearing surface of the first conveyor belt.

[0009] Preferably, a buffer bin is provided between the first conveyor belt and the crushing device, and between the second conveyor belt and the second screening machine.

[0010] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0011] The utility model is provided with an artificial sand production device and an aggregate storage device. A part of the aggregate discharged by the first screening machine passes through the artificial sand production device to produce artificial sand and aggregate. The other part of the aggregate discharged by the first screening machine is discharged independently by the fourth conveyor belt. The artificial sand production device and the aggregate storage device are designed independently, so that when only aggregate preparation is required, the aggregate storage device can be turned on separately, and there is no need to turn on the artificial sand production device, which greatly reduces the power loss of the equipment during aggregate production and reduces the cost investment in electricity.

[0012] The circulating conveyor belt transfers the aggregate discharged from the second screening machine to the first conveyor belt again, and then transports the aggregate to the crushing device through the first conveyor belt to realize the cyclic crushing of the aggregate, and the increase of machine-made sand production can be adjusted; if the output of machine-made sand needs to be reduced, only part of the aggregate from the second screening machine needs to be discharged from the fifth conveyor belt to reduce the output of machine-made sand, and flexible regulation of machine-made sand production capacity can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a flow chart of the utility model;

[0014] Figure 2 This is the material flow structure diagram of the machine-made sand production of the utility model;

[0015] Figure 3 This is a material flow structure diagram for aggregate storage in the utility model;

[0016] Figure 4 This is a material flow structure diagram of the present utility model.

[0017] In the figure: 10, first screening machine; 20, machine-made sand production device; 201, first conveyor belt; 202, buffer bin; 203, crushing device; 204, second conveyor belt; 205, second screening machine; 206, third conveyor belt; 207, machine-made sand silo; 208, circulating conveyor belt; 30, aggregate storage device; 301, fourth conveyor belt; 302, fifth conveyor belt; 303, sixth conveyor belt; 304, aggregate silo. DETAILED DESCRIPTION

[0018] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. Before describing in detail the technical solutions of each embodiment of the present invention, the nouns and terms involved are explained. In this specification, components with the same name or the same number represent similar or identical structures and are for illustrative purposes only.

[0019] like Figure 1 As shown in Figure 3, an aggregate machine-made sand production line includes a first screening machine 10 for screening aggregates. An aggregate outlet of the first screening machine 10 is provided with a machine-made sand production device 20. The machine-made sand production device 20 includes a crushing device 203 whose inlet receives the aggregate screened by the first screening machine 10, a second screening machine 205 receiving the crushing outlet of the crushing device 203, and a bottom end of the second screening machine 205 is respectively provided with a feed outlet for screening machine-made sand and aggregate. The production line also includes an aggregate storage device 30, which includes a fourth conveyor belt 301 for receiving the aggregate from the first screening machine 10. The first screening machine 10 first screens the aggregate and distinguishes the particle size. Aggregates with a particle size of 5-15 mm are directly screened and stored by the aggregate storage device 30 for subsequent use. Aggregates with a particle size of 0-4.75 mm are machine-made sand and are crushed and screened by the machine-made sand production device 20 to achieve mass production.

[0020] Specifically, the aggregate is first screened by the first screening machine 10. The first screening machine 10 screens out the 5-15 mm aggregate and then drops it out. According to market demand, the screened aggregate falls into the machine-made sand production device 20 or the aggregate storage device 30 to adjust the output of machine-made sand and aggregate according to the market. The specific work is as follows:

[0021] The first screening machine 10 drops the aggregate into the crushing device 203, and the crushing device 203 crushes the aggregate. The crushing device 203 preferably adopts plasma crushing. After the aggregate is crushed, it falls into the second screening machine 205. The second screening machine 205 screens the crushed material. A part of the crushed material falls out through the machine-made sand material port of the second screening machine 205, which is machine-made sand, while the other part of the crushed material cannot fall out through the machine-made sand material port, so it falls out from the aggregate material port. After the aggregate is collected, it is convenient for subsequent use, that is, the production of machine-made sand and the collection of aggregate are realized; if there is no need to produce machine-made sand, but only aggregate production is needed, after the first screening machine 10 screens the aggregate, the aggregate is conveyed out through the fourth conveyor belt 301, and there is no need to start the entire machine-made sand production device 20, which greatly reduces the power consumption of the production line equipment.

[0022] like Figure 1 and Figure 2As shown, the machine-made sand production device 20 also includes a circulating conveyor belt 208 arranged at the entrance of the crushing device 203, and the aggregate of the second screening machine 205 falls on the bearing surface of the circulating conveyor belt 208, wherein the bottom end of the circulating conveyor belt 208 is located at the aggregate material port of the second screening machine 205, and the top end is located at the entrance of the crushing device 203. If a large amount of machine-made sand needs to be produced according to market demand, the aggregate discharged from the second screening machine 205 is guided to the crushing device 203 through the circulating conveyor belt 208, and the crushing device 203 crushes the aggregate again, thereby realizing the cyclic crushing of the aggregate to produce machine-made sand, thereby greatly increasing the output of machine-made sand.

[0023] like Figure 1 and Figure 2 As shown, the machine-made sand production device 20 also includes a first conveyor belt 201 arranged between the first screening machine 10 and the crushing device 203, and a second conveyor belt 204 arranged between the crushing device 203 and the second screening machine 205, wherein the aggregate dropped from the first screening machine 10 falls onto the bearing surface of the first conveyor belt 201, the first conveyor belt 201 transfers the aggregate to the crushing device 203, and enters from the feeding port of the crushing device 203, the crushing device 203 crushes the aggregate and then falls onto the bearing surface of the second conveyor belt 204, the crushed material on the bearing surface of the second conveyor belt 204 is gradually transferred to the feeding port of the second screening machine 205, the crushed material is screened from the second screening machine 205, and the machine-made sand material port of the second screening machine 205 is unloaded.

[0024] The aggregate on the bearing surface of the circulating conveyor 208 falls to the bearing surface of the first conveyor 201, wherein the aggregate on the bearing surface of the circulating conveyor 208 gradually falls onto the first conveyor 201, and then gradually falls from the first conveyor 201 to the crushing device 203, which can improve the stability of the falling of the aggregate, and the crushing device 203 does not need to set a separate opening for the circulating conveyor 208.

[0025] like Figure 2 As shown, a buffer bin 202 is provided between the first conveyor belt 201 and the crushing device 203, and between the second conveyor belt 204 and the second screening machine 205. The buffer bin 202 is used to buffer the aggregates or crushed materials, temporarily store the crushed materials and aggregates, and arrange them in an orderly manner on the conveyor belt to avoid accumulation and confusion. A weighing conveyor belt can also be provided between the crushing device 203 and the upper buffer bin 202. The weighing conveyor belt accurately measures and records the weight of the crushed materials and aggregates, thereby realizing automatic weighing and metering.

[0026] like Figure 3 and Figure 4As shown, the aggregate storage device 30 also includes a fifth conveyor belt 302 for carrying the aggregates falling from the fourth conveyor belt 301. The fifth conveyor belt 302 is located directly below the aggregate feeding port of the second screening machine 205 and carries part of the aggregates from the second screening machine 205. The fourth conveyor belt 301 receives the aggregates discharged from the first screening machine 10 and can be used to directly produce 5-15 mm aggregates without starting the machine-made sand production device 20. The aggregates on the bearing surface of the fourth conveyor belt 301 gradually fall onto the fifth conveyor belt 302 and are discharged through the fifth conveyor belt 302. At the same time, the fifth conveyor belt 302 can also receive part of the aggregates discharged from the second screening machine 205.

[0027] Specifically, a sixth conveyor belt 303 is further provided at the aggregate discharge end of the fifth conveyor belt 302. The sixth conveyor belt 303 receives the aggregate discharged from the fifth conveyor belt 302. An aggregate storage 304 is provided at the aggregate discharge end of the sixth conveyor belt 303. The aggregate is discharged into the aggregate storage 304 through the sixth conveyor belt 303, thereby realizing the storage of aggregate.

[0028] The second screening machine 205 circulates and crushes the discharged aggregate through the circulating conveyor 208 to produce more machine-made sand. If the production of machine-made sand needs to be increased, the first conveyor 201 conveys the aggregate to the crushing device 203. The crushing device 203 drops the crushed material into the second screening machine 205 for screening. At the same time, the second screening machine 205 screens the aggregate in the crushed material and drops it back onto the first conveyor 201 through the circulating conveyor 208, thereby increasing the amount of aggregate crushing and the production capacity of machine-made sand. If the production capacity of machine-made sand needs to be reduced, the aggregate discharge port of the second screening machine 205 is bifurcated and the discharge amount is controlled by a valve. By adjusting the valve, the amount of aggregate falling on the circulating conveyor 208 is reduced, thereby reducing the amount of machine-made sand raw material, reducing the amount of raw material for the crushing device 203, and reducing the production capacity of machine-made sand. At the same time, the load of the crushing device 203 can be adjusted. The valve can be used to increase the amount of aggregate falling from the material outlet to the fifth conveyor 302, thereby increasing the amount of aggregate discharged from the second screening machine 205, thereby adjusting the production capacity of machine-made sand.

[0029] like Figure 4 As shown, the machine-made sand material port of the second screening machine 205 is provided with a machine-made sand material warehouse 207 and a third conveyor belt 206 located between the entrance of the machine-made sand material warehouse 207 and the second screening machine 205, wherein the third conveyor belt 206 is located at the machine-made sand material port of the second screening machine 205, and the third conveyor belt 206 transports and discharges the machine-made sand. A machine-made sand material warehouse 207 is also provided at the discharge end of the third conveyor belt 206, and the machine-made sand discharged from the second screening machine 205 is transported to the machine-made sand material warehouse 207 through the third conveyor belt 206.

[0030] A dust extraction device may also be provided at the bearing surfaces of the third conveyor belt 206 and the sixth conveyor belt 303 to reduce dust on the surfaces of the conveyor belts.

[0031] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An aggregate machine-made sand production line, comprising a first screening machine (10) for screening aggregates, wherein an aggregate port of the first screening machine (10) is provided with a machine-made sand production device (20), characterized in that: The machine-made sand production device (20) comprises a crushing device (203) whose inlet receives the aggregate screened by the first screening machine (10), a second screening machine (205) which receives the crushing port of the crushing device (203), and the bottom end of the second screening machine (205) is respectively equipped with a feed port for screening machine-made sand and aggregate; and further comprises The aggregate storage device (30) includes a fourth conveyor belt (301) for receiving the aggregate from the first screening machine (10).

2. The aggregate machine-made sand production line according to claim 1, characterized in that: The machine-made sand production device (20) further comprises a circulating conveyor belt (208) arranged at the entrance of the crushing device (203), and the aggregates from the second screening machine (205) fall onto the bearing surface of the circulating conveyor belt (208).

3. The aggregate machine-made sand production line according to claim 2, characterized in that: The machine-made sand production device (20) further includes a first conveyor belt (201) arranged between the first screening machine (10) and the crushing device (203), and a second conveyor belt (204) arranged between the crushing device (203) and the second screening machine (205).

4. The aggregate machine-made sand production line according to claim 3, characterized in that: Aggregates on the bearing surface of the circulating conveyor belt (208) fall to the bearing surface of the first conveyor belt (201).

5. The aggregate machine-made sand production line according to claim 3, characterized in that: Buffer bins (202) are provided between the first conveyor belt (201) and the crushing device (203), and between the second conveyor belt (204) and the second screening machine (205).

6. The aggregate machine-made sand production line according to claim 1, characterized in that: The aggregate storage device (30) further comprises a fifth conveyor belt (302) for carrying the aggregates falling from the fourth conveyor belt (301).

7. The aggregate machine-made sand production line according to claim 6, characterized in that: The fifth conveyor belt (302) is located directly below the aggregate feed port of the second screening machine (205) and carries part of the aggregate of the second screening machine (205).

8. The aggregate machine-made sand production line according to claim 1, characterized in that: The machine-made sand material port of the second screening machine (205) is provided with a machine-made sand material storehouse (207) and a third conveyor belt (206) located between the entrance of the machine-made sand material storehouse (207) and the second screening machine (205).

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