CN110369093A - A kind of Machine-made Sand production line - Google Patents

Abstract

The invention relates to a machine-made sand production line. During the production process of the machine-made sand production line of the present invention, the material with larger particles screened out by the screening device is transported to the second crusher through the first conveying device for secondary crushing, and the secondary crushed material passes through the second crushing machine. The conveying device is re-transported to the screening device for screening until the particle size of the material meets the requirements. Since the screened material and the original material are crushed separately, the parameters of the crusher can be adjusted for the two materials, thereby improving the crushing efficiency. and crushing quality, at the same time, it avoids the secondary washing of the returned material and increases the water consumption of washing, thus greatly reducing the production cost.

Description

A machine-made sand production line

technical field

The invention relates to a machine-made sand production line.

Background technique

In the prior art, the machine-made sand production line mainly includes a crusher composed of a vibrating screen. The crusher is mainly used to crush stones to form smaller sand particles. The vibrating screen is used to screen out large stones and small sand particles. In the process, it is difficult for the crusher to complete the crushing at one time, and it needs to be crushed multiple times. For example, the Chinese patent document with the application publication number CN107597383A discloses a similar crushing treatment system, including jaw crushers, impact crushers, and round crushers. The vibrating screen and the improved pulse bag dust removal device, the jaw crusher, the impact crusher and the circular vibrating screen are all connected to the air inlet of the improved pulse bag dust removal device; the jaw crusher is provided with a vibrating feeder There is a hopper on the vibrating feeder, a belt conveyor 1 is installed between the jaw crusher and the impact crusher, and a belt conveyor 2 and a return belt conveyor are installed between the impact crusher and the circular vibrating screen. The discharge port of the circular vibrating screen is provided with at least one discharge conveyor belt, and an improved self-unloading iron remover is provided above the first belt conveyor and the second belt conveyor.

In addition, the Chinese patent literature with the authorized notification number CN206008948U also discloses a sand and gravel crushing production line, including a vibrating feeder, a jaw crusher, a cone crusher, a first vibrating screen, a high-pressure roller mill, and a vertical shaft impactor. The crusher and the second vibrating screen, the vibrating feeder, the jaw crusher, the cone crusher and the first vibrating screen are connected through the forward conveyor belt, and a The first return conveyor belt, a forward conveyor belt and a second return conveyor belt are respectively arranged between the first vibrating screen and the support of the high-pressure roller mill, and the first vibrating screen is broken by the forward conveyor belt and the vertical shaft impact The vertical shaft impact crusher is connected with the second vibrating screen through the forward conveyor belt.

In these two production lines, in order to use a conveyor belt to return the material with larger particles screened out by the vibrating screen to the crusher, so as to ensure the complete crushing of the material, but due to the return of the material and the first The size difference of the crushed materials is still very large, it is difficult to ensure the quality of the crushing, and in general, water washing is required during the crushing process to remove soil impurities. If the returned materials directly enter the crusher, the water washing will be greatly increased. The water consumption in the process increases the production cost.

Contents of the invention

The invention provides a machine-made sand production line to solve the problems of poor crushing quality and large water consumption in the existing machine-made sand production line.

The machine-made sand production line of the present invention adopts the following technical solutions:

A machine-made sand production line, comprising a first crusher for crushing materials for the first time and a screening device connected to the discharge port of the first crusher, the screening device has a fine material outlet and a coarse material outlet , the machine-made sand production line also includes a second crusher, the feed port of the second crusher communicates with the coarse material outlet of the screening device through the first conveying device, and the discharge port of the second crusher It communicates with the feed port of the screening device through the second conveying device.

The first conveying device is a first conveying belt, and the coarse material outlet of the screening device is provided with a guide groove hanging from the feeding end of the first conveying device.

The discharge end of the guide groove is inclined downward.

A material receiving plate is provided below the discharge end of the material guide trough, and the material receiving plate has an opening facing the feeding end of the first conveyor belt.

The cross-section of the material receiving plate is a V-shaped structure, and its opening is an elongated opening extending along the feeding direction of the first conveyor belt.

A first guide box with a flaring structure is provided below the discharge end of the first conveyor belt, the large end of the first guide box is set toward the discharge end of the first conveyor belt, and the small end is facing the first conveyor belt Two breaker settings.

The second conveying device is a second conveying belt, and the discharge end of the second conveying belt is provided with a second guide box facing the screening device.

The second guide box is a flared structure, its large end is set towards the discharge end of the second conveyor belt, and its small end is set towards the screening device.

The screening device is a vibrating screen, and the discharge end of the second conveying device is arranged above the upper screen of the screening device.

The beneficial effects of the present invention are: the machine-made sand production line of the present invention includes a first crusher for crushing materials for the first time and a screening device connected to the discharge port of the first crusher, the screening device has a fine material outlet and The coarse material outlet, the machine-made sand production line also includes a second crusher, the feed port of the second crusher communicates with the coarse material outlet of the screening device through the first conveying device, and the discharge port of the second crusher communicates with the screen device. The feed port is connected through the second conveying device. During the production process, the material with larger particles screened out by the screening device is transported to the second crusher through the first conveying device for secondary crushing. The material is re-transported to the screening device through the second conveying device for screening until the particle size of the material meets the requirements. Since the screened material and the original material are crushed separately, the parameters of the crusher can be adjusted for the two materials. In this way, the crushing efficiency and crushing quality are improved, and at the same time, the returned materials are avoided from being washed twice to increase the water consumption of washing, thereby greatly reducing the production cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the embodiment of a kind of machine-made sand production line of the present invention;

Fig. 2 is the right view of Fig. 1 (no water turbine);

Fig. 3 is a perspective view of Fig. 2;

Fig. 4 is a partial enlarged view at the position of the receiving plate in Fig. 3;

Figure 5 is a partial enlarged view of the first guide box in Figure 3;

In the figure: 1. screening device; 2. water turbine; 3. second crusher; 4. first conveying device; 5. second guiding box; 6. second conveying device; Material plate; 42, first guide box; 411, opening.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of a machine-made sand production line of the present invention, as shown in Figures 1 to 5, a machine-made sand production line includes a first crusher for crushing materials for the first time and a discharge port connected to the first crusher. The connected screening device 1, the screening device 1 has a fine material outlet and a coarse material outlet, the machine-made sand production line also includes a second crusher 3, the feed port of the second crusher 3 passes through the coarse material outlet of the screening device 1 The first conveying device 4 communicates, and the discharge port of the second crusher 3 communicates with the feed port of the screening device 1 through the second conveying device 6 .

In this embodiment, in order to improve the durability of the device and reduce the cost, the first conveying device 4 is a first conveying belt. The material guide groove 11 on the end can guide the material to the first conveying device 4 through the material guide groove 11, so as to prevent the material from falling into the next process.

In this embodiment, the discharge end of the guide groove is inclined downward, and the size of the material itself is relatively large, so that the material can move downward along the guide groove under the action of gravity, avoiding blockage, and avoiding the use of an additional power drive mechanism And increase energy consumption.

In order to avoid material spilling, in this embodiment, a material receiving plate 41 is provided below the discharge end of the material guide trough 11, and the material receiving plate 41 has an opening 411 facing the feeding end of the first conveyor belt. Specifically, the material receiving plate 41 has a V-shaped cross section, and its opening 411 is an elongated opening 411 extending along the feeding direction of the first conveyor belt.

In this embodiment, a first guide box 42 with a flaring structure is provided below the discharge end of the first conveyor belt. The second crusher 3 is set so that materials can enter the second crusher 3 conveniently.

At the same time, the second conveying device 6 is a second conveying belt, and the discharge end of the second conveying belt is provided with a second guiding box 5 arranged toward the screening device 1 . The second guide box 5 is a flared structure, its large end is set towards the discharge end of the second conveyor belt, and its small end is set towards the screening device 1, so that the material enters the screening device 1 through the second guide box 5.

The screening device 1 is specifically a vibrating screen, and the discharge end of the second conveying device 6 is arranged above the upper screen of the screening device. At the same time, in this embodiment, a water turbine 2 is provided behind the sieving device, and there are two water turbines 2, which can wash the screened materials to ensure the cleaning rate of the machine-made sand. The specific structure of the water turbine can be Refer to the hydraulic turbine in the material making machine disclosed in the Chinese patent document whose authorized announcement number is CN203598894U.

The working principle of the present invention is that the machine-made sand raw material enters the vibrating screen through the hopper, and the vibrating screen has two layers. After the raw material entering the vibrating screen is screened by the first layer, raw materials with larger particle sizes are retained on the first layer, and these raw materials pass through the vibrating screen. The conveyor belt enters the second crusher for crushing, and the crushed raw materials enter the first layer of the vibrating screen again through the conveyor belt, and the material passing through the first layer of vibrating screen is a mixture of sand and fertilizer, and then passes through the second layer of screening Finally, finer-grained sand, soil, debris and other substances enter the waste bin and are output through the conveyor belt; at the same time, the machine-made sand on the second-layer screen enters the water turbine for cleaning.

Due to the adoption of the above-mentioned production process, the present invention has the following characteristics: 1. The source of the machine-made sand raw material is dry-treated, and impurities such as waste materials, fine sand, and soil are eliminated, and more than 80% of the sludge is saved, which is very beneficial Environmental protection, but also save a lot of mechanical costs, cleaning and transportation costs, reducing the stacking site; 2. Only wash the finished sand particles with water, which can save a lot of water, saving 63% of water, and after dry treatment due to Adopting dry treatment makes the crusher run in a dry environment, saves power, reduces damage to accessories, and prolongs the service life of the breaker and other components. Through the combination of the above-mentioned different points, the production capacity can be increased by more than three times.

The machine-made sand production line of the present invention includes a first crusher for crushing materials for the first time and a screening device connected to the discharge port of the first crusher. The screening device has a fine material outlet and a coarse material outlet. The machine-made sand production line It also includes a second crusher, the feed port of the second crusher communicates with the coarse material outlet of the screening device through the first conveying device, and the discharge port of the second crusher communicates with the feed port of the screening device through the second conveying device. The device is connected. During the production process, the material with larger particles screened out by the screening device is transported to the second crusher through the first conveying device for secondary crushing, and the secondary crushed material is re-crushed through the second conveying device. It is transported to the screening device for screening until the particle size of the material meets the requirements, and the waste is eliminated. Since the screened material and the original material are separately crushed, the parameters of the crusher can be adjusted for the two materials, and the crushing The machine works in a dry crushing state (without water injection), which triples the crushing efficiency, crushing quality and productivity. At the same time, it avoids the secondary washing of eliminated materials (soil, fine sand surface, etc.) to increase the water consumption of washing, save water by 63%, and reduce sludge generation by more than 80%, thus greatly reducing production costs.

In other embodiments of the present invention, the first conveying device and the second conveying device can also be replaced by other conveying devices, such as using a larger conveying auger, or using a conveying chain, etc.; A small transition conveyor belt is set under the coarse material outlet instead of the guide groove to avoid blockage.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. a kind of Machine-made Sand production line is broken including the first crusher for carrying out initial integral method to material and with described first There is fine material outlet and coarse fodder to export for the screening plant of the discharge port connection of broken machine, the screening plant, it is characterised in that: described Machine-made Sand production line further includes the second crusher, and the coarse fodder outlet of the feed inlet and the screening plant of second crusher is logical The connection of the first conveying device is crossed, the discharge port of second crusher and the feed inlet of the screening plant are filled by the second conveying Set connection.

2. Machine-made Sand production line according to claim 1, it is characterised in that: first conveying device is the first conveying The coarse fodder outlet of band, the screening plant is equipped with the deflector chute being hung on the feed end of first conveying device.

3. Machine-made Sand production line according to claim 2, it is characterised in that: the discharge end of the guiding groove tilts down.

4. Machine-made Sand production line according to claim 3, it is characterised in that: be equipped with and connect below the discharge end of the deflector chute Flitch, the splicing plate have the opening of feed end of the opening towards the first conveyer belt.

5. Machine-made Sand production line according to claim 4, it is characterised in that: the section is v-shaped structure, and opening is The elongated opening extended along the feed direction of the first conveyer belt.

6. Machine-made Sand production line according to claim 5, it is characterised in that: the lower section of the discharge end of the first conveyer belt Equipped with flaring structure first guidance case, it is described first guidance case big end towards the first conveyer belt discharge end setting, Small end is arranged towards second crusher.

7. Machine-made Sand production line described in any one of -6 according to claim 1, it is characterised in that: second conveying device For the second conveyer belt, the discharge end of second conveyer belt is equipped with the second guidance case being arranged towards the screening plant.

8. Machine-made Sand production line according to claim 7, it is characterised in that: the second guidance case is flaring structure, The discharge end of big end towards second conveyer belt is arranged, small end is arranged towards the screening plant.

9. Machine-made Sand production line described in any one of -6 according to claim 1, it is characterised in that: the screening plant is vibration The top of the upper screen of the screening plant is arranged in dynamic sieve, the discharge end of second conveying device.