Building concrete mortar raw material screening equipment

Abstract

The utility model discloses building concrete mortar raw material screening equipment, which belongs to the technical field of concrete processing and comprises a screening box, a collecting hopper is arranged at the lower end in the screening box, two guide plates are arranged on the upper side of the collecting hopper, a vibrating screen is arranged between the two guide plates, and a drying mechanism is arranged on the upper side in the screening box. By arranging the dust falling assembly, dust can be generated when raw materials are dried and screened, the draught fan is started, the draught fan enables negative pressure to be formed at the dust inlet hopper at one end of the fixing pipe through the connecting pipe, the dust enters the fixing pipe through the dust inlet hopper, the dust falling assembly is arranged at the position, corresponding to the dust inlet, of the upper end of the screening box, and the dust falling assembly is arranged at the position, corresponding to the dust inlet, of the upper end of the screening box. And then the dust enters the filter box through the connecting pipe, a gravel layer and an activated carbon layer in the filter box sequentially filter the dust and then discharge the dust out of the filter box, dust falling can be conducted on the dust generated during drying and screening by arranging a dust falling assembly, and pollution of the dust to air is reduced.

Description

Technical Field

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

[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] Chinese patent application No. 2022217686475 discloses a mortar raw material screening device, including a screening device, and the screening device includes a screening box, a feed port, a clamping plate, and a guide plate. The mortar raw material screening device, the utility model allows hot air to enter the inner side of the screening cylinder through the air inlet, and cooperates with the roller to drive the scraper to rotate the mortar raw material, so that the mortar raw material can be evenly heated in the screening cylinder, and the mortar raw material after drying contacts the inner wall of the screening cylinder with the scraper, so that the mortar raw material can pass through the bottom of the screening cylinder and enter the top surface of the vibrating screen, and the guide plates at both ends of the vibrating screen are inclined, so that the mortar raw materials are conveniently concentrated on the top surface of the vibrating screen, and the mortar raw materials of the same size can be screened into the collecting hopper, while large particles of debris are scattered on the surface of the vibrating screen, and the vibrating screen can be removed from between the clamping plates by loosening the bolts for cleaning, thereby achieving the effect of easy disassembly and assembly.

[0004] The above-mentioned patent does not have a dust reduction function. The device will generate dust when drying and screening the raw materials. The dust is easy to float out from the feed port and cause serious air pollution. At the same time, the original device installs the vibrating screen with bolts, which is not conducive to the rapid disassembly, assembly and fixation of the vibrating screen. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a construction concrete mortar raw material screening equipment, which has a dust reduction function and can reduce the dust generated when the raw materials are dried and screened.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction concrete mortar raw material screening equipment, including a screening box, a collecting hopper is arranged at the lower end of the screening box, two guide plates are arranged on the upper side of the collecting hopper, a vibrating screen is arranged between the two guide plates, a drying mechanism is arranged on the upper side of the screening box, a feed port is arranged at the upper end of the screening box, and a dust reduction component is arranged at the position of the upper end of the screening box corresponding to the feed port.

[0007] Preferably, the dust reduction component includes a filter box, a fixed pipe, a dust inlet hopper, a fan, a connecting pipe, a sand and gravel layer, an activated carbon layer and a connecting component, wherein a filter box is provided on one side of the upper end of the screening box, a fan is provided on one end of the filter box, a sand and gravel layer is provided on one side of the inside of the filter box, an activated carbon layer is provided on one side of the sand and gravel layer, a fixed pipe is provided on one side of the upper end of the feed port, a dust inlet hopper is provided on one end of the fixed pipe, the fixed pipe is connected to the filter box by a connecting pipe, and the sand and gravel layer and the activated carbon layer are connected to the filter box by a connecting component.

[0008] Preferably, the connecting assembly includes a mounting plate, a mounting port, fixing bolts, fixing holes and a rubber pad, wherein a mounting plate is arranged on the upper end of the sand and gravel layer and the activated carbon layer, a mounting port corresponding to the mounting plate is arranged on the upper end of the filter box, a rubber pad is arranged on the inner wall of the mounting port, the mounting plate and the filter box are connected by fixing bolts, and a fixing hole corresponding to the fixing bolt is arranged in the mounting port.

[0009] Preferably, a handle is provided on the upper end of the mounting plate, through holes corresponding to the fixing bolts are provided on both sides of the mounting plate, and the fixing pipe is connected to the screening box via a support rod.

[0010] Preferably, two fixed cylinders are provided on one side of the lower end of the guide plate, a sliding rod is provided in the fixed cylinder, a pulling plate is provided at the lower end of the sliding rod, a limiting plate is provided on the surface of the sliding rod, a spring is provided on the surface of the sliding rod between the limiting plate and the fixed cylinder, and card holes corresponding to the sliding rod are provided on both sides of the vibrating screen.

[0011] Preferably, the fixed cylinder and the guide plate are both provided with sliding holes corresponding to the sliding rod, the upper end of the sliding rod is provided with an arc structure, and the fixed cylinder and the guide plate are welded by spot welding.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a dust reduction component. When the raw materials are dried and screened, dust will float out from the feed port. The fan is turned on, and a negative pressure is formed at the dust inlet hopper at one end of the fixed pipe through the connecting pipe. The dust enters the fixed pipe through the dust inlet hopper, and then enters the filter box through the connecting pipe. The sand and gravel layer and the activated carbon layer in the filter box filter the dust in turn and then discharge it from the filter box. The dust generated during drying and screening can be reduced by setting the dust reduction component, thereby reducing the pollution of dust to the air.

[0014] 2. The utility model sets a fixed cylinder. When the vibrating screen is installed, the pull plate is pulled to drive the slide bar and the limit plate to slide in the fixed cylinder, and the spring is compressed. Then, the two ends of the vibrating screen are inserted into one end of the guide plate. Then, the pull plate is released, and the spring stretches to push one end of the slide bar into the clamping hole of the vibrating screen, thereby achieving the effect of limiting and fixing the vibrating screen. The pull plate is pulled to drive one end of the slide bar to move out of the clamping hole of the vibrating screen, and the vibrating screen can be removed. The setting of the fixed cylinder facilitates the quick disassembly and fixation of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a cutaway stereoscopic view of the screening box of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the installation of the sand and gravel layer and the activated carbon layer of the utility model;

[0018] Figure 4 This is a sectional stereoscopic view of the fixed cylinder when the vibrating screen of the utility model is installed;

[0019] Figure 5 For this utility model Figure 4 A magnified image of point A;

[0020] In the figure: 1. screening box; 2. dust suppression component; 21. filter box; 22. fixed pipe; 23. dust inlet hopper; 24. fan; 25. connecting pipe; 26. sand and gravel layer; 27. activated carbon layer; 28. connecting component; 281. mounting plate; 282. mounting port; 283. fixing bolt; 284. fixing hole; 285. rubber pad; 3. feed port; 4. collecting hopper; 5. drying mechanism; 6. guide plate; 7. vibrating screen; 8. fixing cylinder; 9. sliding rod; 10. pulling plate; 11. limiting plate; 12. spring; 13. clamping hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5The utility model provides the following technical solutions: a construction concrete mortar raw material screening equipment, including a screening box 1, a collecting hopper 4 is arranged at the lower end of the screening box 1, two guide plates 6 are arranged on the upper side of the collecting hopper 4, a vibrating screen 7 is arranged between the two guide plates 6, a drying mechanism 5 is arranged on the upper side of the screening box 1, a feeding port 3 is arranged at the upper end of the screening box 1, and a dust reduction component 2 is arranged at the position of the upper end of the screening box 1 corresponding to the feeding port 3.

[0024] Specifically, the dust reduction component 2 includes a filter box 21, a fixed pipe 22, a dust inlet 23, a fan 24, a connecting pipe 25, a sand and gravel layer 26, an activated carbon layer 27 and a connecting component 28, wherein a filter box 21 is provided on one side of the upper end of the screening box 1, a fan 24 is provided on one end of the filter box 21, a sand and gravel layer 26 is provided on one side of the inside of the filter box 21, an activated carbon layer 27 is provided on one side of the sand and gravel layer 26, a fixed pipe 22 is provided on one side of the upper end of the feed port 3, a dust inlet 23 is provided on one end of the fixed pipe 22, the fixed pipe 22 is connected to the filter box 21 by a connecting pipe 25, and the sand and gravel layer 26 and the activated carbon layer 27 are connected to the filter box 21 by a connecting component 28.

[0025] By adopting the above technical scheme, dust will float out from the feed port 3 when the raw materials are dried and screened. The fan 24 is turned on, and the fan 24 forms a negative pressure at the dust inlet hopper 23 at one end of the fixed pipe 22 through the connecting pipe 25. The dust enters the fixed pipe 22 through the dust inlet hopper 23, and then enters the filter box 21 through the connecting pipe 25. The sand and gravel layer 26 and the activated carbon layer 27 in the filter box 21 filter the dust in turn and then discharge it from the filter box 21. By setting the dust reduction component 2, the dust generated during drying and screening can be reduced to reduce the pollution of dust to the air.

[0026] Specifically, the connecting assembly 28 includes a mounting plate 281, a mounting port 282, a fixing bolt 283, a fixing hole 284 and a rubber pad 285, wherein a mounting plate 281 is arranged on the upper end of the sand and gravel layer 26 and the activated carbon layer 27, a mounting port 282 corresponding to the mounting plate 281 is arranged on the upper end of the filter box 21, a rubber pad 285 is arranged on the inner wall of the mounting port 282, the mounting plate 281 and the filter box 21 are connected by a fixing bolt 283, and a fixing hole 284 corresponding to the fixing bolt 283 is arranged in the mounting port 282.

[0027] By adopting the above technical solution, the fixing bolt 283 is screwed out from the fixing hole 284, and the mounting plate 281 can be taken out from the mounting port 282 through the handle. The mounting plate 281 can bring the sand and gravel layer 26 and the activated carbon layer 27 out of the filter box 21 through the mounting port 282. A rubber pad 285 is arranged on the inner wall of the mounting port 282 so that the rubber pad 285 is squeezed when the mounting plate 281 is installed, so that the mounting plate 281 has a better sealing performance with the filter box 21 after installation. The connection component 28 is arranged to facilitate the disassembly and cleaning of the sand and gravel layer 26 and the activated carbon layer 27.

[0028] Specifically, a handle is provided at the upper end of the mounting plate 281, through holes corresponding to the fixing bolts 283 are provided at both sides of the mounting plate 281, and the fixing pipe 22 and the screening box 1 are connected via a supporting rod.

[0029] By adopting the above technical solution, a handle is provided to facilitate taking the mounting plate 281 , the fixing bolt 283 is convenient to pass through the mounting plate 281 to support it, and the support rod can support and fix the fixing tube 22 .

[0030] When the present embodiment is used, the equipment for screening raw materials for building concrete mortar is installed at a suitable position, and the raw materials are poured into the drying mechanism 5 in the screening box 1 through the feed port 3. The dried raw materials fall onto the vibrating screen 7, and the vibrating screen 7 screens the raw materials. Qualified raw materials fall into the collecting hopper 4. By setting the dust reduction component 2, dust will float out from the feed port 3 when the raw materials are dried and screened. The fan 24 is turned on, and the fan 24 forms a negative pressure at the dust inlet hopper 23 at one end of the fixed pipe 22 through the connecting pipe 25. The dust enters the fixed pipe 22 through the dust inlet hopper 23, and then enters the filter box 21 through the connecting pipe 25. The sand and gravel layer 26 and the activated carbon layer 27 in the filter box 21 successively filter the dust. The dust is discharged from the filter box 21 after filtering. By setting the dust reduction component 2, the dust generated during drying and screening can be reduced to reduce the pollution of dust to the air. By setting the connecting component 28, the fixing bolt 283 is screwed out from the fixing hole 284, and the mounting plate 281 can be taken out from the mounting port 282 through the handle. The mounting plate 281 can bring the sand and gravel layer 26 and the activated carbon layer 27 out of the filter box 21 through the mounting port 282. A rubber pad 285 is set on the inner wall of the mounting port 282 so that the rubber pad 285 is squeezed when the mounting plate 281 is installed, so that the mounting plate 281 has a better sealing with the filter box 21 after installation. The connecting component 28 is convenient for disassembly and cleaning of the sand and gravel layer 26 and the activated carbon layer 27.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that: two fixed cylinders 8 are arranged on one side of the lower end of the guide plate 6, a slide rod 9 is arranged in the fixed cylinder 8, a pull plate 10 is arranged at the lower end of the slide rod 9, a limit plate 11 is arranged on the surface of the slide rod 9, a spring 12 is arranged on the surface of the slide rod 9 between the limit plate 11 and the fixed cylinder 8, and card holes 13 corresponding to the slide rod 9 are arranged on both sides of the vibrating screen 7.

[0033] By adopting the above technical solution, when the vibrating screen 7 is installed, the pull plate 10 is pulled to drive the slide bar 9 and the limit plate 11 to slide in the fixed tube 8, and the spring 12 is compressed. Then, the two ends of the vibrating screen 7 are inserted into one end of the guide plate 6, and then the pull plate 10 is released. The spring 12 is stretched and pushes one end of the slide bar 9 into the clamping hole 13 of the vibrating screen 7, so as to achieve the effect of limiting and fixing the vibrating screen 7. The pull plate 10 is pulled to drive one end of the slide bar 9 to move out of the clamping hole 13 of the vibrating screen 7, and the vibrating screen 7 can be removed. By setting the fixed tube 8, it is convenient to quickly disassemble and fix the vibrating screen 7.

[0034] Specifically, sliding holes corresponding to the sliding rod 9 are provided in the fixed cylinder 8 and the guide plate 6. The upper end of the sliding rod 9 is provided with an arc structure. The fixed cylinder 8 and the guide plate 6 are welded by spot welding.

[0035] By adopting the above technical solution, the slide rod 9 can slide in the fixed tube 8 and the guide plate 6, and the slide rod 9 can easily enter the clamping hole 13. The spot welding makes the fixed tube 8 and the guide plate 6 more secure.

[0036] When this embodiment is used, by setting the fixed cylinder 8, when the vibrating screen 7 is installed, the pull plate 10 is pulled to drive the slide bar 9 and the limit plate 11 to slide in the fixed cylinder 8, and the spring 12 is compressed. Then, the two ends of the vibrating screen 7 are inserted into one end of the guide plate 6, and then the pull plate 10 is released. The spring 12 is stretched and pushes one end of the slide bar 9 into the clamping hole 13 of the vibrating screen 7, so as to achieve the effect of limiting and fixing the vibrating screen 7. The pull plate 10 is pulled to drive one end of the slide bar 9 to move out of the clamping hole 13 of the vibrating screen 7, and the vibrating screen 7 can be removed. By setting the fixed cylinder 8, it is convenient to quickly disassemble and fix the vibrating screen 7.

[0037] The blower 24 of the utility model is an existing disclosed technology, and the selected model is 4-72C.

[0038] The structure and working principle of the screening box 1, the feed port 3, the collecting hopper 4, the drying mechanism 5, the guide plate 6 and the vibrating screen 7 in the utility model have been disclosed in a mortar raw material screening device disclosed in Chinese patent application No. 2022217686475, and its working principle is to pour the raw materials into the drying mechanism 5 in the screening box 1 through the feed port 3, and the raw materials after drying fall onto the vibrating screen 7, and the vibrating screen 7 screens the raw materials, and the qualified raw materials fall into the collecting hopper 4.

[0039] The working principle and use process of the utility model are as follows: for screening raw materials of building concrete mortar, the device is installed at a suitable position, and the raw materials are poured into the drying mechanism 5 in the screening box 1 through the feed port 3. The dried raw materials fall onto the vibrating screen 7, and the vibrating screen 7 screens the raw materials. The qualified raw materials fall into the collecting hopper 4. By setting the dust reduction component 2, dust will float out from the feed port 3 when the raw materials are dried and screened, and the fan 24 is turned on. The fan 24 forms a negative pressure at the dust inlet hopper 23 at one end of the fixed pipe 22 through the connecting pipe 25. The dust enters the fixed pipe 22 through the dust inlet hopper 23, and then enters the filter box 21 through the connecting pipe 25. The sand and gravel layer 26 and the activated carbon layer 27 in the filter box 21 filter the dust in turn and then discharge it from the filter box 21. By setting the dust reduction component 2, the dust generated during drying and screening can be reduced to reduce the pollution of dust to the air. By setting the connecting component 28, the fixing bolt 283 is screwed out from the fixing hole 284, and the installation can be installed through the handle The plate 281 is taken out from the installation opening 282, and the installation plate 281 can bring the sand and gravel layer 26 and the activated carbon layer 27 out of the filter box 21 through the installation opening 282. A rubber pad 285 is arranged on the inner wall of the installation opening 282 so that the rubber pad 285 is squeezed when the installation plate 281 is installed, so that the installation plate 281 is better sealed with the filter box 21 after installation. The connection assembly 28 is arranged to facilitate the disassembly and cleaning of the sand and gravel layer 26 and the activated carbon layer 27. The fixing cylinder 8 is arranged, and the pull plate is pulled when the vibrating screen 7 is installed. 10 drives the slide bar 9 and the limit plate 11 to slide in the fixed tube 8, and the spring 12 is compressed. Then, the two ends of the vibrating screen 7 are inserted into one end of the guide plate 6. Then, the pull plate 10 is released, and the spring 12 is extended to push one end of the slide bar 9 into the clamping hole 13 of the vibrating screen 7, so as to achieve the effect of limiting and fixing the vibrating screen 7. The pull plate 10 is pulled to drive one end of the slide bar 9 to move out of the clamping hole 13 of the vibrating screen 7, and the vibrating screen 7 can be removed. By setting the fixed tube 8, it is convenient to quickly disassemble and fix the vibrating screen 7.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction concrete mortar raw material screening device, comprising a screening box, characterized in that: A collecting hopper is arranged at the lower end of the screening box, two guide plates are arranged on the upper side of the collecting hopper, a vibrating screen is arranged between the two guide plates, a drying mechanism is arranged on the upper side of the screening box, a feed port is arranged at the upper end of the screening box, and a dust reduction component is arranged at the position of the upper end of the screening box corresponding to the feed port.

2. The construction concrete mortar raw material screening equipment according to claim 1 is characterized by: The dust reduction component includes a filter box, a fixed pipe, a dust inlet hopper, a fan, a connecting pipe, a sand and gravel layer, an activated carbon layer and a connecting component, wherein a filter box is arranged on one side of the upper end of the screening box, a fan is arranged on one end of the filter box, a sand and gravel layer is arranged on one side of the inside of the filter box, an activated carbon layer is arranged on one side of the sand and gravel layer, a fixed pipe is arranged on one side of the upper end of the feed port, a dust inlet hopper is arranged on one end of the fixed pipe, the fixed pipe is connected to the filter box by a connecting pipe, and the sand and gravel layer and the activated carbon layer are connected to the filter box by a connecting component.

3. The construction concrete mortar raw material screening equipment according to claim 2 is characterized by: The connecting assembly includes a mounting plate, a mounting port, fixing bolts, fixing holes and a rubber pad, wherein a mounting plate is arranged on the upper end of the sand and gravel layer and the activated carbon layer, a mounting port corresponding to the mounting plate is arranged on the upper end of the filter box, a rubber pad is arranged on the inner wall of the mounting port, the mounting plate and the filter box are connected by fixing bolts, and a fixing hole corresponding to the fixing bolt is arranged in the mounting port.

4. The construction concrete mortar raw material screening equipment according to claim 3 is characterized by: A handle is arranged on the upper end of the mounting plate, through holes corresponding to the fixing bolts are arranged on both sides of the mounting plate, and the fixing pipe is connected to the screening box through a supporting rod.

5. The construction concrete mortar raw material screening equipment according to claim 1, characterized in that: Two fixed cylinders are arranged on one side of the lower end of the guide plate, a sliding rod is arranged in the fixed cylinder, a pulling plate is arranged at the lower end of the sliding rod, a limiting plate is arranged on the surface of the sliding rod, a spring is arranged on the surface of the sliding rod between the limiting plate and the fixed cylinder, and card holes corresponding to the sliding rod are arranged on both sides of the vibrating screen.

6. The construction concrete mortar raw material screening equipment according to claim 5, characterized in that: The fixing cylinder and the guide plate are both provided with sliding holes corresponding to the sliding rods, and the upper end of the sliding rods is provided with an arc structure. The fixing tube and the guide plate are welded by spot welding.

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