Concrete raw material screening device

Abstract

The utility model provides a concrete raw material screening device, which belongs to the technical field of gravel screening, and comprises a device base, a screening mechanism used for classifying concrete raw materials is arranged on the device base, and the screening mechanism comprises a screening assembly used for classifying gravel and cleaning dirt on the gravel. The screening mechanism comprises a flushing assembly used for assisting the screening assembly in cleaning. The screening assembly comprises four damping springs arranged on the device base, a cleaning pool is connected among the four damping springs, four compression springs are symmetrically arranged in the cleaning pool, a vibrating screen is connected to the tops of the four compression springs, and a screening groove is connected to the cleaning pool; according to the device, stone is preliminarily classified through the screening assembly, the stone is washed through the washing assembly, and then the screened stone is subjected to secondary washing through the washing pool, so that it is ensured that after gravel raw materials are screened and washed, attached dirt can be effectively removed, and meanwhile the high treatment speed and resource utilization efficiency are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening, in particular to a concrete raw material screening device. Background Art

[0002] With the rapid development of modern infrastructure, the demand for concrete as a fundamental building material is growing, and the requirements for concrete quality are also increasing. Concrete's main components include cement, aggregates (sand and gravel), water, and possible additives. Aggregate quality directly impacts the strength, durability, and performance of the final product. However, during the actual collection and transportation process, sand and gravel often carry large amounts of dirt, impurities, and other contaminants. If these impurities are not effectively removed, they can significantly reduce the quality and performance of the concrete.

[0003] After the stone is mined, the sand and gravel are often cleaned manually with a handheld high-pressure water gun. This method is not only labor-intensive, but also fails to achieve the ideal cleanliness of the stone. In addition, this flushing method consumes a large amount of water resources, and the water after the flushing process will have an impact on the environment if it is not treated. Utility Model Content

[0004] In view of this, the utility model provides a concrete raw material screening device, which performs preliminary classification of stones through a screening component, and flushes the stones through a flushing component, and then performs secondary cleaning of the screened stones through a cleaning tank to ensure that the sand and gravel raw materials can effectively remove attached dirt after screening and cleaning, while maintaining a high processing speed and resource utilization efficiency.

[0005] In order to solve the above technical problems, the utility model provides a concrete raw material screening device, comprising a device base, on which a screening mechanism for classifying concrete raw materials is provided, the screening mechanism comprising a screening assembly for classifying sand and gravel and cleaning dirt on the sand and gravel, and the screening mechanism comprising a flushing assembly for assisting in cleaning the screening assembly;

[0006] The screening component includes four damping springs arranged on the base of the device, a cleaning pool is connected between the four damping springs, four compression springs are symmetrically arranged in the cleaning pool, a vibrating screen is connected to the top of the four compression springs, and a screening trough is connected to the cleaning pool; the flushing component includes a fixed frame arranged on the base of the device, two sets of water supply pipes are provided on the fixed frame, and each set of water supply pipes is connected to a number of nozzles.

[0007] By putting sand and gravel into the screening trough, the sand and gravel are screened at the first level, the larger sand and gravel are screened, and the classification of large and small sand and gravel is achieved. The screened fine sand and gravel are cleaned in the cleaning tank. The vibrating screen set in the cleaning tank vibrates up and down. On the one hand, the sand and gravel are frequently immersed in water for cleaning, and on the other hand, the sand and gravel are transported. The flushing component provides the necessary hydraulic flushing for the screening process through two sets of water supply pipes and multiple nozzles installed on the fixed frame.

[0008] The cleaning tank and the screening tank are connected by four hydraulic push rods, and vibrators for providing kinetic energy are connected to the side walls of the cleaning tank.

[0009] The cleaning tank and screening trough are connected by hydraulic push rods to achieve a dynamic link between the two. At the same time, the vibrator provides the necessary vibration kinetic energy for screening, which improves the screening efficiency on the one hand and the cleaning efficiency of sand and gravel on the other.

[0010] The top of the screening trough is connected with an inlet channel for introducing stones, and a first outlet channel is provided on one side of the screening trough for leading out stones. A second outlet channel is provided on one side of the cleaning tank for leading out the stones after cleaning.

[0011] The feed channel is set at the top of the screening trough for the introduction of stones, the first discharge channel is set on one side of the screening trough for the discharge of larger stones, and the second discharge channel is set next to the cleaning pool for the discharge of stones after cleaning.

[0012] The flushing component also includes a sewage pump and a double-suction pump for water supply. A suction pipe is connected between the sewage pump and the cleaning pool. One end of the suction pipe is connected to the input end of the sewage pump, and the other end is connected to the cleaning pool. The sewage pump is connected to a group of water supply pipes through a first water supply pipe. One input end of the double-suction pump is connected to the cleaning pool through a suction pipe, and the other input end is provided with a connecting valve for connecting to an external water source, and the output end is connected to another group of water supply pipes through a second water supply pipe.

[0013] The sewage pump draws water from the cleaning pool through a suction pipe, and is connected to a group of water supply pipes via the first water supply pipe to realize the recycling of the water in the cleaning pool. The two input ends of the double-suction pump, one is connected to the cleaning pool to recycle the internal water, and the other is used to connect to an external water source, and is connected to another group of water supply pipes through the second water supply pipe to ensure sufficient and continuous water supply.

[0014] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:

[0015] 1. The four hydraulic push rods between the cleaning tank and the screening trough adjust the relative position between the two in a timely manner according to the instructions of the control system to optimize the screening and cleaning effects. The vibrators on both sides of the cleaning tank provide additional kinetic energy for the entire screening and cleaning process, enhance the vibration effect, and improve the screening efficiency.

[0016] 2. The screened and cleaned stones are discharged through the first discharge channel on one side of the screening tank according to the particle size and cleanliness, and the stones that have been cleaned are discharged through the second discharge channel on the side of the cleaning tank, realizing the classification and separation of raw materials.

[0017] 3. Use sewage pumps and double-suction pumps to extract water from the cleaning pool and external water sources to ensure a continuous supply of water for flushing, and flush the stones by extracting sewage from the cleaning pool to reduce the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a front view structural diagram of the utility model;

[0020] Figure 3 This is a left-side structural schematic diagram of the present utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0022] Explanation of the accompanying drawings: 1. Device base; 2. Screening mechanism; 21. Screening assembly; 201. Damping spring; 202. Cleaning tank; 203. Compression spring; 204. Vibrating screen; 205. Screening trough; 206. Hydraulic push rod; 207. Vibrator; 208. Feed channel; 209. First discharge channel; 210. Second discharge channel; 22. Flushing assembly; 221. Fixed frame; 222. Water supply pipe; 223. Nozzle; 224. Sewage pump; 225. Double-suction pump; 226. Suction pipe; 227. First water supply pipe; 228. Second water supply pipe; 229. Connecting valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-4 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0024] like Figure 1-4 As shown: This embodiment provides a concrete raw material screening device, including a device base 1, on which is provided a screening mechanism 2 for classifying concrete raw materials. The screening mechanism 2 includes a screening component 21 for classifying sand and gravel and cleaning dirt on the sand and gravel. The screening mechanism 2 includes a flushing component 22 for assisting in cleaning the screening component 21.

[0025] The screening assembly 21 includes four damping springs 201 arranged on the device base 1, a cleaning tank 202 is connected between the four damping springs 201, four compression springs 203 are symmetrically arranged in the cleaning tank 202, a vibrating screen 204 is connected to the top of the four compression springs 203, and a screening trough 205 is connected to the cleaning tank 202; the flushing assembly 22 includes a fixed frame 221 arranged on the device base 1, two groups of water supply pipes 222 are provided on the fixed frame 221, and each group of water supply pipes 222 is connected to a number of nozzles 223.

[0026] The cleaning tank 202 and the screening tank 205 are connected by four hydraulic push rods 206, and the side walls of the cleaning tank 202 are connected with vibrators 207 for providing kinetic energy. The hydraulic push rods 206 and the vibrators 207 connect the cleaning tank 202 and the screening tank 205, and the dynamic connection between the two is realized through the hydraulic push rods 206. At the same time, the vibrator 207 provides the system with necessary vibration kinetic energy to improve the screening efficiency.

[0027] The top of the screening trough 205 is connected with an inlet channel 208 for introducing stones, and a first discharge channel 209 is provided on one side of the screening trough 205 for discharging stones. A second discharge channel 210 is provided on one side of the cleaning tank 202 for discharging stones after cleaning. The inlet channel 208 is located at the top of the screening trough 205 for introducing stones. The first discharge channel 209 is provided on one side of the screening trough 205 for discharging stones after screening. The second discharge channel 210 is provided next to the cleaning tank 202 for discharging stones after cleaning.

[0028] The flushing assembly 22 also includes a sewage pump 224 and a double-suction pump 225 for water supply. A water pumping pipe 226 is connected between the sewage pump 224 and the cleaning tank 202. One end of the water pumping pipe 226 is connected to the input end of the sewage pump 224, and the other end is connected to the cleaning tank 202. The sewage pump 224 is connected to a set of water supply pipes 222 through a first water supply pipe 227. One input end of the double-suction pump 225 is connected to the cleaning tank 202, and the other input end is provided with a water pump for connecting to an external water source. Connect valve 229, and the output end is connected to another set of water supply pipes 222 through the second water supply pipe 228. The sewage pump 224 draws water from the cleaning tank 202 through the pumping pipe 226, and is connected to a set of water supply pipes 222 via the first water supply pipe 227 to achieve recycling. The double-suction pump 225 has two input ends, one connected to the cleaning tank 202, and the other can be connected to an external water source, and is connected to another set of water supply pipes 222 through the second water supply pipe 228 to ensure sufficient and continuous water supply.

[0029] The method of using the present invention is as follows: first, the stones to be processed are introduced into the screening device through the feeding channel 208 provided at the top of the screening tank 205. When the stones enter the screening tank 205, the vibrating screen 204 starts to work. The vibrating screen 204 is supported by four compression springs 203 and is connected to the damping spring 201 under the cleaning tank 202. The vibrator 207 generates vertical and horizontal vibrations, so that the stones rub against each other during the vibration process, removing some surface dirt. At the same time, the water in the cleaning tank 202 is continuously washed by the high-pressure water flow formed by the nozzle 223 under the action of vibration. The stones that have been screened and cleaned are respectively discharged into qualified sand and gravel through the first discharge channel 209 on the side of the screening trough 205 according to the particle size and cleanliness. The stones that have been cleaned are discharged through the second discharge channel 210 on the side of the cleaning tank 202, thereby realizing the classification and separation of raw materials. The water source is supplied by the sewage pump 224 and the double-suction pump 225 respectively. The sewage pump 224 extracts water containing impurities from the cleaning tank 202 through the pumping pipe 226. After filtration or treatment, it is recycled back to a group of water supply pipes 222 through the first water supply pipe 227 for use by the nozzle 223. The double-suction pump 225 draws clean water from the cleaning pool 202 and an external water source (such as tap water or a circulating water pool) at the same time, and replenishes it to another set of water supply pipes 222 through the second water supply pipe 228 to ensure a continuous supply of flushing water.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A concrete raw material screening device, comprising a device base (1), characterized in that: The device base (1) is provided with a screening mechanism (2) for classifying concrete raw materials, the screening mechanism (2) comprising a screening component (21) for classifying sand and gravel and cleaning dirt on the sand and gravel, and the screening mechanism (2) comprising a flushing component (22) for assisting in cleaning the screening component (21); The screening component (21) comprises four damping springs (201) arranged on the device base (1), a cleaning pool (202) is connected between the four damping springs (201), four compression springs (203) are symmetrically arranged in the cleaning pool (202), a vibrating screen (204) is connected to the top of the four compression springs (203), and a screening trough (205) is connected to the cleaning pool (202); the flushing component (222) comprises a fixing frame (221) arranged on the device base (1), two groups of water supply pipes (222) are provided on the fixing frame (221), and each group of water supply pipes (222) is connected to a plurality of nozzles (223).

2. The concrete raw material screening device according to claim 1, characterized in that: The cleaning tank (202) and the screening tank (205) are connected via four hydraulic push rods (206), and vibrators (207) for providing kinetic energy are connected to the side walls of both sides of the cleaning tank (202).

3. The concrete raw material screening device according to claim 2, characterized in that: The top of the screening trough (205) is connected to an inlet channel (208) for introducing stones, and a first outlet channel (209) is provided on one side of the screening trough (205) for discharging stones.

4. The concrete raw material screening device according to claim 2, characterized in that: A second discharge channel (210) for discharging cleaned stones is provided on one side of the cleaning tank (202).

5. The concrete raw material screening device according to claim 1, characterized in that: The flushing assembly (22) also includes a sewage pump (224) and a double-suction pump (225) for supplying water.

6. The concrete raw material screening device according to claim 5, characterized in that: A water pump (226) is provided between the sewage pump (224) and the cleaning tank (202), one end of the water pump (226) being connected to the input end of the sewage pump (224), and the other end being connected to the cleaning tank (202). The sewage pump (224) is connected to a group of the water supply pipes (222) via a first water supply pipe (227).

7. The concrete raw material screening device according to claim 5, characterized in that: One input end of the double-suction pump (225) is connected to the cleaning tank (202), the other input end is provided with a connection valve (229) for connecting to an external water source, and the output end is connected to another set of the water supply pipes (222) through a second water supply pipe (228).

Images