Construction gravel screening equipment

Abstract

The utility model is suitable for the technical field of gravel, and provides construction gravel screening equipment which comprises a water storage tank. The screening cylinder is fixedly mounted at the top of the water storage tank; the rotary screening unit is arranged on the screening cylinder and is used for screening the fallen sand and stones; the cleaning cylinder is arranged on the surface of the water storage tank; and the classification and concentration box is arranged on the left side of the water storage box and used for storing the discharged nonstandard gravel. Compared with the prior art, the gravel cleaning and screening device has the advantages that when the gravel cleaning and screening device is used, thrown gravel can be screened for multiple times through the rotary screening unit, unqualified gravel is thrown into the classification and concentration box to be subjected to centralized treatment, gravel cleaning and screening are combined, the occupied space is reduced, and the environment is protected; and in addition, after gravel screening is completed, cleaning work can be conducted immediately, and therefore the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand and gravel, and in particular relates to construction sand and gravel screening equipment. Background Art

[0002] Sand and gravel are basic materials in national economic construction and are indispensable and irreplaceable aggregate materials for many infrastructure construction. During construction, other materials are often added to form concrete composite materials, which play a role as a skeleton, stabilize the volume of concrete, transfer stress, inhibit shrinkage, and prevent cracking. They play an extremely important role in construction and infrastructure.

[0003] In the prior art, during construction, since sand and gravel are of different sizes, in order to obtain sand and gravel of standard size, they are screened by a screening machine before mixing, and then transported to a cleaning pool for cleaning to reduce dust residue on the surface of the sand and gravel and improve the quality of concrete. However, batch operation not only wastes time, but also increases manpower input and occupies space.

[0004] Therefore, how to provide a construction sand and gravel screening device is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The utility model aims to provide a construction sand and gravel screening device, aiming to solve the problems mentioned in the background technology.

[0006] The utility model is implemented in this way: a construction sand and gravel screening device comprises:

[0007] Water storage tanks;

[0008] A screening cylinder, wherein the screening cylinder is fixedly mounted on the top of the water storage tank;

[0009] A rotary screening unit, which is arranged on the screening drum to screen the fallen sand and gravel;

[0010] A cleaning cylinder, wherein the cleaning cylinder is arranged on the surface of the water storage tank;

[0011] A classification and concentration box is arranged on the left side of the water storage tank to collect the discharged non-standard sand and gravel;

[0012] A cleaning unit, which is arranged inside the cleaning cylinder and cleans the fallen sand and gravel;

[0013] The finished product outlet is arranged at the front side of the cleaning cylinder to guide the discharge of sand and gravel.

[0014] Preferably, the rotary screening unit comprises a rotating drum, a conical plate, a chute, a conical screen plate, a first material guide pipe and a second material guide pipe, the rotating drum is movably mounted in the middle of the screening drum, the conical plate is fixedly mounted at the lower end of the rotating drum, the chute circumferential array is opened on the surface of the rotating drum, the conical screen plate array is arranged on the surface of the rotating drum, a positioning block is fixedly mounted on the bottom of the conical screen plate, the positioning block is movably inserted in the chute, a side array of the screening drum is provided with a discharge port, the upper and middle discharge ports are both internally provided with an electric sealing plate, the left side array inside the screening drum is provided with a first scraper to control the movement and discharge of sand and gravel, the first material guide pipe and the second material guide pipe are installed from top to bottom on the outside of the upper and middle discharge ports, and extend to the classification concentration box.

[0015] Preferably, the cleaning unit includes a support platform, a cleaning filter plate, a driving gear and a water filter assembly. The support platform is fixedly mounted on the surface of the water storage tank, the cleaning filter plate is slidably mounted on the surface of the support platform, a second scraper is fixedly mounted on the front side of the interior of the cleaning cylinder to guide the sand and gravel on the cleaning filter plate to the finished product outlet, a tooth groove is provided in the bottom circumferential array of the edge of the cleaning filter plate, the driving gear is arranged at the rear end of the cleaning cylinder and meshed with the tooth groove, a water spray plate is installed in the top circumferential array of the cleaning cylinder, a water pump is provided in the inner circumferential array of the water storage tank and is connected to the water spray plate, and the water filter assembly is arranged in the cleaning cylinder to filter and recover water.

[0016] Preferably, a delivery port is movably placed on the top of the screening cylinder, and a truncated cone is movably inserted on the top of the rotating cylinder to apply pressure to the top of the conical screen plate.

[0017] Preferably, the bottom of the first scraper is respectively disposed in contact with the top of the conical screen plate and the conical plate, and the front side of the first scraper is flush with the rear side of the discharge port.

[0018] Preferably, the water filter assembly includes a filter cover and a return pipe, the filter cover is fixedly installed on the inner side of the bottom of the cleaning cylinder, the return pipe is fixedly installed on the top of the water tank and is connected with the filter cover and the water tank, and a cleaning plate is fixedly installed on the bottom of the cleaning filter plate, and the lower end of the cleaning plate is set in contact with the surface of the filter cover.

[0019] Compared with the prior art, the utility model has the following beneficial effects: when in use, the put sand and gravel can be screened multiple times by the rotating screening unit, and the unqualified sand and gravel can be put into the classification and concentration box for centralized treatment, and the cleaning and screening of the sand and gravel are combined, which not only reduces the occupied space, but also enables the sand and gravel to be cleaned immediately after the screening is completed, thereby greatly improving the work efficiency;

[0020] At the same time, it is convenient to install and disassemble the conical sieve plate, thereby preventing sand and gravel from blocking the holes of the conical sieve plate and affecting the normal filtration of sand and gravel. By setting the frustum, pressure is applied to the top of the conical sieve plate, making the conical sieve plate more stable and less likely to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A schematic diagram of the overall appearance structure of a construction sand and gravel screening device provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the main cross-sectional structure of a construction sand and gravel screening device provided by an embodiment of the utility model;

[0024] Figure 3 A right side cross-sectional structural schematic diagram of a construction sand and gravel screening device provided by an embodiment of the utility model;

[0025] Figure 4 The embodiment of the utility model provides Figure 2 A schematic diagram of the enlarged structure of part A;

[0026] Figure 5 The embodiment of the utility model provides Figure 3 Schematic diagram of the enlarged structure of part B.

[0027] In the figure: 1-water storage tank, 2-screening cylinder, 3-feeding port, 4-rotating cylinder, 5-conical plate, 6-chute, 7-positioning block, 8-conical screen plate, 9-truncated cone, 10-first scraper, 11-discharge port, 12-first material guide pipe, 13-second material guide pipe, 14-cleaning cylinder, 15-classification and concentration box, 16-water pumping pipe, 17-water spray plate, 18-cleaning filter plate, 19-second scraper, 20-finished product outlet, 21-support table, 22-tooth groove, 23-driving gear, 24-cleaning plate, 25-filter cover, 26-return pipe, 27-electric sealing plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure is a schematic diagram of the structure of a construction sand and gravel screening device provided by an embodiment of the utility model, comprising:

[0031] Water storage tank 1;

[0032] A screening cylinder 2, wherein the screening cylinder 2 is fixedly mounted on the top of the water storage tank 1;

[0033] A rotary screening unit, which is arranged on the screening drum 2 to screen the fallen sand and gravel;

[0034] A cleaning cylinder 14, wherein the cleaning cylinder 14 is arranged on the surface of the water storage tank 1;

[0035] A classification and concentration box 15, which is arranged on the left side of the water storage tank 1, and collects the discharged non-standard sand and gravel;

[0036] A cleaning unit, which is arranged inside the cleaning cylinder 14 and cleans the fallen sand and gravel;

[0037] The finished product outlet 20 is arranged at the front side of the cleaning cylinder 14 to guide the discharge of sand and gravel.

[0038] In the embodiment of the utility model, when in use, sand and gravel are put into the screening drum 2, and then the rotary screening unit is started to screen them, and unqualified products are discharged into the classification collection box 15, while qualified products are put into the cleaning drum 14, cleaned by the cleaning unit, and then discharged through the finished product outlet 20.

[0039] like Figure 1 , Figure 2 and Figure 3As shown, as a preferred embodiment of the utility model, the rotary screening unit includes a rotating drum 4, a conical plate 5, a chute 6, a conical screen plate 8, a first material guide pipe 12 and a second material guide pipe 13, the rotating drum 4 is movably installed in the middle of the screening drum 2, the conical plate 5 is fixedly installed at the lower end of the rotating drum 4, the chute 6 is arranged in a circular array on the surface of the rotating drum 4, the conical screen plate 8 is arranged in an array on the surface of the rotating drum 4, a positioning block 7 is fixedly installed at the bottom of the conical screen plate 8, and the positioning block 7 is movably inserted in the chute 6, the side array of the screening drum 2 is provided with a discharge port 11, and the upper and middle discharge ports 11 are both provided with electric sealing plates 27, the left side array inside the screening drum 2 is provided with a first scraper 10 to control the movement and export of sand and gravel, the first material guide pipe 12 and the second material guide pipe 13 are installed from top to bottom on the outside of the upper and middle discharge ports 11, and extend to the classification concentration box 15.

[0040] In the embodiment of the utility model, when in use, when screening is performed, the rotating drum 4 is started to rotate the conical screen plate 8 so that the sand and gravel on its surface hits the first scraper 10 at the corresponding position, causing it to move, so that the sand and gravel that meet the hole size falls onto the conical screen plate 8 of the lower layer for secondary screening, and then falls onto the conical plate 5 at the bottom layer, and then under the action of the first scraper 10 at the bottom layer, the qualified sand and gravel passes through the lowest discharge port 11 and falls onto the cleaning filter plate 18 in the cleaning drum 14, while the sand and gravel remaining on the two conical screen plates 8 is opened by the electric sealing plate 27 on the surface of the corresponding discharge port 11, and then under the action of the first scraper 10, the remaining sand and gravel passes through the corresponding discharge port 11 into the first guide pipe 12 and the second guide pipe 13, so that the unqualified sand and gravel enters the classification and concentration box 15 for centralized mobile phone, which is convenient for subsequent processing.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the utility model, the cleaning unit includes a support platform 21, a cleaning filter plate 18, a driving gear 23 and a water filter assembly, the support platform 21 is fixedly mounted on the surface of the water storage tank 1, the cleaning filter plate 18 is slidably mounted on the surface of the support platform 21, and a second scraper 19 is fixedly mounted on the front side of the inside of the cleaning cylinder 14 to guide the sand and gravel on the cleaning filter plate 18 to the finished product outlet 20, and a tooth groove 22 is provided at the bottom circumferential array of the edge of the cleaning filter plate 18, the driving gear 23 is arranged at the rear end of the cleaning cylinder 14 and meshed with the tooth groove 22, and a water spray plate 17 is installed on the top circumferential array of the cleaning cylinder 14, and a water suction pipe 16 is provided in the internal circumferential array of the water storage tank 1, and is connected to the water spray plate 17, and the water filter assembly is arranged in the cleaning cylinder 14 to filter and recover water.

[0042] In the embodiment of the utility model, when in use, the water suction pipe 16 is started, and the sand and gravel on the cleaning filter plate 18 are cleaned through the water spray plate 17. At the same time, the driving gear 23 is started to engage with the tooth groove 22, thereby driving the cleaning filter plate 18 to rotate counterclockwise along the support platform 21, so that the sand and dust remaining on the surface of the sand and gravel can be removed. Subsequently, the cleaned sand and gravel are discharged into the prepared container through the finished product outlet 20 on the surface of the cleaning cylinder 14 under the action of the second scraper 19.

[0043] like Figure 1 and Figure 4 As shown, as a preferred embodiment of the utility model, a delivery port 3 is movably placed on the top of the screening cylinder 2, and a frustum 9 is movably inserted on the top of the rotating cylinder 4 to apply pressure to the top of the conical screen plate 8.

[0044] In the embodiment of the utility model, when in use, sand and gravel are put in through the putting port 3, then hit the frustum 9, and then fall onto the conical screen plate 8, thereby reducing the impact when falling and avoiding damage to the conical screen plate 8.

[0045] like Figure 2 As shown, as a preferred embodiment of the utility model, the bottom of the first scraper 10 is respectively arranged in contact with the top of the conical screen plate 8 and the conical plate 5, and the front side of the first scraper 10 is flush with the rear side of the discharge port 11.

[0046] In the embodiment of the utility model, when in use, the first scraper 10 will scrape the sand and gravel on the surface of the conical screen plate 8 and the conical plate 5 to the discharge port 11 for discharge.

[0047] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the utility model, the water filter assembly includes a filter cover 25 and a return pipe 26, the filter cover 25 is fixedly installed on the inner side of the bottom of the cleaning cylinder 14, the return pipe 26 is fixedly installed on the top of the water tank 1, and is connected with the filter cover 25 and the water tank 1, and a cleaning plate 24 is fixedly installed on the bottom of the cleaning filter plate 18, and the lower end of the cleaning plate 24 is arranged in contact with the surface of the filter cover 25.

[0048] In the embodiment of the utility model, when in use, the sewage generated by cleaning will accumulate and settle under the cleaning cylinder 14, and under the action of the filter cover 25, the clean filtered water will enter the inside of the filter cover 25, and under the action of the return pipe 26, it will return to the water storage tank 1, thereby realizing the recycling of water. At the same time, when the cleaning filter plate 18 rotates, the cleaning plate 24 rotates accordingly to scrape off the mud and sand attached to the surface of the filter cover 25 to maintain its filtering effect.

[0049] The utility model provides a construction sand and gravel screening device in the above embodiment. When in use, the device body is moved to a designated place, and then the conical screen plate 8 is inserted into the chute 6 with positioning blocks 7 in order from large to small according to the size of the holes along the chute 6 on the surface of the rotating drum 4, and then the truncated cone 9 is inserted into the top of the rotating drum 4 to make the conical screen plate 8 rotate more smoothly, and then the delivery port 3 is installed on the top of the screening drum 2, so as to facilitate the delivery of sand and gravel;

[0050] When screening, the rotating cylinder 4 is started to rotate the conical screen plate 8, so that the sand and gravel on its surface hits the first scraper 10 at the corresponding position, causing it to move, so that the sand and gravel that meet the hole size falls onto the conical screen plate 8 of the lower layer for secondary screening, and then falls onto the conical plate 5 at the bottom layer. Then, under the action of the first scraper 10 at the bottom layer, the qualified sand and gravel falls through the lowest discharge port 11 onto the cleaning filter plate 18 in the cleaning cylinder 14;

[0051] At the same time, when falling, the water pump 16 in the water tank 1 is started, and the sand and gravel on the cleaning filter plate 18 are cleaned through the water spray plate 17. At the same time, when spraying water, the driving gear 23 is started, and the cleaning filter plate 18 is driven to rotate counterclockwise along the support table 21 by meshing with the tooth groove 22, so that the sand and dust remaining on the surface of the sand and gravel can be removed. Then, the cleaned sand and gravel are discharged into the prepared container through the finished product outlet 20 on the surface of the cleaning cylinder 14 under the action of the second scraper 19;

[0052] The sewage generated by cleaning will accumulate and settle under the cleaning cylinder 14, and under the action of the filter cover 25, the clean filtered water will enter the inside of the filter cover 25, and under the action of the return pipe 26, it will return to the water storage tank 1, thereby realizing the recycling of water;

[0053] At the same time, in order to prevent muddy water from blocking the surface of the filter cover 25, a cleaning plate 24 is provided at the bottom of the cleaning filter plate 18, so that as the cleaning filter plate 18 rotates, the mud and sand attached to the surface of the filter cover 25 are scraped off to maintain the filtering effect;

[0054] The sand and gravel remaining on the two conical sieve plates 8 are opened by opening the electric sealing plate 27 on the surface of the corresponding discharge port 11, and then under the action of the first scraper 10, the remaining sand and gravel pass through the corresponding discharge port 11 into the first guide pipe 12 and the second guide pipe 13, so that the unqualified sand and gravel enter the classification and collection box 15 for centralized mobile phone collection, which is convenient for subsequent processing.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction sand and gravel screening device, characterized in that: include: Water storage tanks; A screening cylinder, wherein the screening cylinder is fixedly mounted on the top of the water storage tank; A rotary screening unit, which is arranged on the screening drum to screen the fallen sand and gravel; A cleaning cylinder, wherein the cleaning cylinder is arranged on the surface of the water storage tank; A classification and concentration box is arranged on the left side of the water storage tank to collect the discharged non-standard sand and gravel; A cleaning unit, which is arranged inside the cleaning cylinder and cleans the fallen sand and gravel; The finished product outlet is arranged at the front side of the cleaning cylinder to guide the discharge of sand and gravel.

2. A construction sand and gravel screening device according to claim 1, characterized in that: The rotary screening unit includes a rotating drum, a conical plate, a chute, a conical screen plate, a first material guide pipe and a second material guide pipe. The rotating drum is movably installed in the middle of the screening drum, and the conical plate is fixedly installed at the lower end of the rotating drum. The chute circumferential array is opened on the surface of the rotating drum, and the conical screen plate array is arranged on the surface of the rotating drum. A positioning block is fixedly installed at the bottom of the conical screen plate, and the positioning block is movably inserted in the chute. The side array of the screening drum is provided with a discharge port, and the interior of the upper and middle discharge ports are both provided with an electric sealing plate. The left array inside the screening drum is provided with a first scraper to control the movement and discharge of sand and gravel. The first and second material guide pipes are installed from top to bottom on the outside of the upper and middle discharge ports, and extend to the classification concentration box.

3. A construction sand and gravel screening device according to claim 1, characterized in that: The cleaning unit includes a support platform, a cleaning filter plate, a driving gear and a water filter assembly. The support platform is fixedly mounted on the surface of the water storage tank, the cleaning filter plate is slidably mounted on the surface of the support platform, a second scraper is fixedly mounted on the front side of the interior of the cleaning cylinder to guide the sand and gravel on the cleaning filter plate to the finished product outlet, a bottom circumferential array of the edge of the cleaning filter plate is provided with a tooth groove, the driving gear is arranged at the rear end of the cleaning cylinder and meshed with the tooth groove, a water spray plate is installed on the top circumferential array of the cleaning cylinder, a water pump is provided on the internal circumferential array of the water storage tank and is connected to the water spray plate, and the water filter assembly is arranged in the cleaning cylinder to filter and recover water.

4. A construction sand and gravel screening device according to claim 2, characterized in that: The top of the screening cylinder is movably provided with a delivery port, and the top of the rotating cylinder is movably provided with a frustum to apply pressure to the top of the conical screen plate.

5. The construction sand and gravel screening equipment according to claim 2, characterized in that: The bottom of the first scraper is respectively arranged in contact with the top of the conical screen plate and the conical plate, and the front side of the first scraper is flush with the rear side of the discharge port.

6. The construction sand and gravel screening equipment according to claim 3, characterized in that: The water filter assembly includes a filter cover and a return pipe. The filter cover is fixedly installed on the inner side of the bottom of the cleaning cylinder. The return pipe is fixedly installed on the top of the water tank and is connected with the filter cover and the water tank. A cleaning plate is fixedly installed on the bottom of the cleaning filter plate, and the lower end of the cleaning plate is set in contact with the surface of the filter cover.

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