Dustproof conveying equipment for concrete mortar raw material processing

Abstract

The invention relates to the technical field of concrete processing equipment, in particular to anti-dust conveying equipment for concrete mortar raw material processing, and a material conveying spiral blade shaft is arranged in an inner cavity of a material conveying box body; the loading mechanism comprises a vertical cylinder with the top end connected to the bottom face of the front end of the material conveying box in a sleeving mode, a cover body arranged at the bottom end of the vertical cylinder and a loading spiral blade shaft arranged in the vertical cylinder and the cover body. The power assembly drives the charging spiral blade shaft to rotate synchronously; the discharging mechanism comprises a square shell arranged at the rear end of the material conveying box and a telescopic cylinder arranged at the bottom end of the square shell. The negative pressure pipe fitting comprises a main pipe and an input bent pipe for communicating the main pipe with the material conveying box body; the dust removal part comprises a cabinet body containing clean water, an axial flow fan connected to the top of the cabinet body and a filter part arranged in the cabinet body, the filter part comprises a rotatable cylindrical filter screen, and an air outlet corresponding to the cylindrical filter screen is formed in the rear wall of the cabinet body; the corrugated pipe is used for connecting the axial flow fan and the main pipe; the walking frame is arranged at the bottom of the conveying box. The dustproof effect during concrete mortar raw material conveying is improved.

Description

Technical Field

[0001] This invention relates to the field of concrete processing equipment technology, specifically to a dust-proof conveying device for processing concrete mortar raw materials. Background Technology

[0002] During the processing of concrete mortar, the mortar raw materials need to be transported to the mixing equipment using conveying equipment. Traditionally, the commonly used mortar raw material conveying equipment are conveyor belts, screw conveyors, etc.

[0003] However, both conveyor belts and screw conveyors inevitably generate a large amount of dust during loading, transportation, and unloading, leading to environmental pollution and harming workers' health. Currently, dust control measures for these conveying devices are generally limited to local sealing or single spraying, which have poor dust removal effects and fail to meet environmental protection requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a dust-proof conveying device for processing concrete mortar raw materials, which solves the problem of poor dust prevention effect of existing concrete mortar raw material conveying devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust-proof conveying device for processing concrete mortar raw materials, wherein the conveying box is a strip-shaped shell structure with an open rear end; the conveying spiral blade shaft is rotatably installed at the bottom of the inner cavity of the conveying box; the loading mechanism includes a vertical cylinder with its top end fixedly sleeved to the bottom surface of the front end of the conveying box, a cover with its top end abutting the bottom end of the vertical cylinder, and a loading spiral blade shaft rotatably installed in the inner cavity of the vertical cylinder and extending to the bottom of the inner cavity of the cover; the power assembly is integrated at the front end of the conveying box and is used to drive the conveying spiral blade shaft and the loading spiral blade shaft to rotate synchronously; the unloading mechanism includes a fixed... The material handling box includes a square shell at its rear end and a telescopic cylinder connected to the bottom of the square shell; the negative pressure pipe includes a main pipe arranged parallel to the material handling box, multiple input bends for connecting the main pipe and the material handling box, and an output bend connected to the end of the main pipe; the dust removal unit includes a cabinet with clean water at the bottom, an axial flow fan connected to the top of the side wall of the cabinet, and a filter element located on the upper side of the middle of the inner cavity of the cabinet, the filter element including a rotatable cylindrical filter screen, and an air outlet connected to the top of the inner cavity of the cylindrical filter screen on the rear wall of the cabinet; the corrugated pipe is connected between the axial flow fan and the output bend; the traveling frame is installed at the bottom of the material handling box.

[0006] Preferably, the filter element further includes a frame-shaped component whose outer wall is correspondingly and fixed to the upper inner wall of the middle part of the cabinet, an end plate that is rotatably clamped to the front and rear ends of the inner cavity of the frame-shaped component, and a connecting shaft that is fixedly fitted to the center of the end plate and rotatably connected to the front and rear walls of the cabinet. A flip motor with a power output shaft fixedly connected to the connecting shaft is fixed to the front wall of the cabinet. The front and rear ends of the cylindrical filter screen are respectively vertically fixed to the outer edge of the end plate. The rear end plate is provided with multiple air vents along the circumference near the outer edge.

[0007] Preferably, the outer edge of the end plate is provided with a plurality of arc-shaped grooves evenly distributed in the circumferential direction, and the cylindrical filter screen is provided with arc-shaped concave portions corresponding to the positions of the arc-shaped grooves.

[0008] Preferably, a cleaning component is provided in the inner cavity of the cabinet below the cylindrical filter screen, a water supply valve and an air drain valve are respectively installed at the top and bottom of the front wall of the cabinet, a pipe head 2 connected to the output end of the axial flow fan is sleeved in the center of the top of the side wall of the cabinet, and casters are installed at the four corners of the bottom of the cabinet.

[0009] Preferably, the cleaning component includes longitudinal beams with their front and rear ends vertically fixed to the front and rear walls of the cabinet cavity, longitudinal rods parallel to the longitudinal beams, bristles on the longitudinal rods, a vertical rod with its top end vertically fixed to the bottom surface of the longitudinal rod and slidably sleeved with the longitudinal beams, and a spring fitted onto the top of the vertical rod and supported at its top and bottom ends on the bottom surface of the longitudinal rod and the top surface of the longitudinal beam, respectively.

[0010] Preferably, the material conveying box includes a semi-cylindrical shell and an upper shell that is fastened to the top of the semi-cylindrical shell. The bottom front end of the semi-cylindrical shell is provided with a bottom hole that is fixedly sleeved with the top end of the vertical cylinder. The top surface of the upper shell is provided with a plurality of pipe heads that are respectively connected to the input bend pipe. The middle of the top surface of the rear end of the inner cavity of the upper shell is fixed with a shaft seat whose bottom end is rotatably sleeved with the rear end of the material conveying spiral blade shaft.

[0011] Preferably, the upper housing has a slot at the center near the front end on its top surface, and a shaft hole is provided on the front side of the slot. The power assembly includes a conveyor motor fixed to the rear side of the slot, a transmission mechanism inserted into the slot for power transmission between the conveyor motor and the conveying screw blade shaft, and an angle reducer fixed to the corresponding position of the shaft hole for power transmission between the conveyor motor and the loading screw blade shaft.

[0012] Preferably, the transmission mechanism includes a vertical housing inserted into the slot, a transmission wheel rotatably mounted on the top and bottom of the inner cavity of the vertical housing, and a transmission belt for transmission connection between the two transmission wheels. Connecting plates are fixed to the two side walls of the vertical housing at positions corresponding to the top surface of the upper housing. The connecting plates are fixed to the top surface of the upper housing with bolts. The transmission wheel includes a bushing with its front and rear ends rotatably sleeved with the front and rear walls of the vertical housing, respectively, and a pulley fixedly sleeved in the middle of the bushing. The front and rear ends of the upper bushing are respectively sleeved with the power input shaft of the angle reducer and the power output shaft of the conveying motor. The bottom bushing is sleeved on the front end of the conveying spiral blade shaft. The power output shaft of the angle reducer is fixedly sleeved with the top end of the loading spiral blade shaft.

[0013] Preferably, the front wall of the square shell is provided with a material inlet that connects with the rear end of the semi-cylindrical shell and the upper shell, and the top of the front end of the square shell is provided with a card plate that extends squarely and is fixedly engaged with the rear end of the upper shell.

[0014] Preferably, the top of the inner cavity of the vertical cylinder is fixed with a shaft frame that is rotatably sleeved with the top of the loading spiral blade shaft, and a C-shaped plate is fixedly connected to the rear side and both sides of the bottom of the cover, and a shovel plate is fixed to the bottom of the C-shaped plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention relates to a dust-proof conveying equipment for processing concrete mortar raw materials, which can fully absorb the dust generated during the entire process of loading, transporting and unloading, thereby greatly improving the dust-proof effect of the concrete mortar raw material conveying equipment.

[0017] 2. The present invention relates to a dust-proof conveying equipment for processing concrete mortar raw materials, which can continuously wash the cylindrical filter screen to remove dust adhering to the outer surface of the cylindrical filter screen in a timely manner, thereby ensuring the continuous filtration effect of the cylindrical filter screen. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a three-dimensional structural diagram of the semi-cylindrical shell of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the upper shell of the present invention;

[0022] Figure 5This is a three-dimensional structural diagram of the loading mechanism of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the unloading mechanism of the present invention;

[0024] Figure 7 This is a three-dimensional structural schematic diagram of the transmission mechanism of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the transmission wheel of the present invention;

[0026] Figure 9 This is a three-dimensional structural diagram of the negative pressure pipe fitting of the present invention;

[0027] Figure 10 This is a three-dimensional structural diagram of the dust removal unit of the present invention;

[0028] Figure 11 This is a three-dimensional structural diagram of the filter element of the present invention;

[0029] Figure 12 This is a three-dimensional structural diagram of the cleaning component of the present invention.

[0030] In the diagram: 1-Material handling box; 1.1-Semi-cylindrical shell; 1.1.1-Bottom hole; 1.2-Upper shell; 1.2.1-Pipe head one; 1.2.2-Slot; 1.2.3-Shaft hole; 1.2.4-Shaft seat;

[0031] 2- Conveying screw blade shaft;

[0032] 3-Powertrain; 3.1-Conveyor Motor; 3.2-Transmission Mechanism; 3.2.1-Vertical Housing; 3.2.2-Connecting Plate; 3.2.3-Transmission Wheel; 3.2.3.1-Pulley; 3.2.3.2-Shaft Sleeve; 3.2.4-Transmission Belt; 3.3-Angle Reducer;

[0033] 4-Fishing mechanism; 4.1-Vertical cylinder; 4.2-Cover body; 4.3-Fishing spiral blade shaft; 4.4-C-shaped plate; 4.5-Shovel plate; 4.6-Shaft bracket;

[0034] 5-Unloading mechanism; 5.1-Square shell; 5.1.1-Material inlet; 5.2-Telescopic cylinder; 5.3-Clamping plate;

[0035] 6-Negative pressure fittings; 6.1-Main pipe; 6.2-Inlet bend; 6.3-Outlet bend;

[0036] 7-Traveling frame;

[0037] 8-Dust Removal Section; 8.1-Cabinet Body; 8.1.1-Pipe Head Two; 8.1.2-Water Inlet Valve; 8.1.3-Drain Valve; 8.1.4-Cast Wheels; 8.2-Axial Flow Fan; 8.3-Filter Components; 8.3.1-Frame Components; 8.3.2-End Plates; 8.3.2.1-Arc-Shaped Groove; 8.3.3-Cylindrical Filter Screen; 8.3.3.1-Arc-Surface Recess; 8.3.4-Connecting Shaft; 8.4-Tilting Motor; 8.5-Cleaning Components; 8.5.1-Longitudinal Beam; 8.5.2-Longitudinal Rod; 8.5.3-Brush Bristle; 8.5.4-Vertical Rod; 8.5.5-Spring;

[0038] 9-Corrugated pipe. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-12 This invention provides a technical solution: a dust-proof conveying device for processing concrete mortar raw materials. The conveying box 1 is a strip-shaped shell structure with an open rear end. The conveying box 1 includes a semi-cylindrical shell 1.1 and an upper shell 1.2 fastened to the top of the semi-cylindrical shell 1.1. The front end of the bottom of the semi-cylindrical shell 1.1 is provided with a bottom hole 1.1.1. The top surface of the upper shell 1.2 is provided with multiple pipe heads 1.2.1. A bearing seat 1.2.4 is fixed in the middle of the top surface of the rear end of the inner cavity of the upper shell 1.2. A slot 1.2.2 is provided in the middle of the top surface of the upper shell 1.2 near the front end, and a shaft hole 1.2.3 is provided on the front side of the slot 1.2.2.

[0041] The loading mechanism 4 includes a vertical cylinder 4.1 with its top end fixedly sleeved on the bottom front end of the material conveying box 1, a cover 4.2 with its top end connected to the bottom end of the vertical cylinder 4.1, and a loading spiral blade shaft 4.3 rotatably installed in the inner cavity of the vertical cylinder 4.1 and extending to the bottom of the inner cavity of the cover 4.2; a shaft frame 4.6 is fixedly installed at the top end of the inner cavity of the vertical cylinder 4.1 and rotatably sleeved on the top end of the loading spiral blade shaft 4.3; a C-shaped plate 4.4 is fixedly connected to the rear side and both sides of the bottom end of the cover 4.2; and a shovel plate 4.5 is fixedly installed at the bottom end of the C-shaped plate 4.4.

[0042] The unloading mechanism 5 includes a square shell 5.1 fixed to the rear end of the material conveying box 1 and a telescopic cylinder 5.2 connected to the bottom end of the square shell 5.1. The front wall of the square shell 5.1 is provided with a material inlet 5.1.1 that connects to the rear end of the semi-cylindrical shell 1.1 and the upper shell 1.2. The top front end of the square shell 5.1 is provided with a clamping plate 5.3 that extends squarely and is fixedly engaged with the rear end of the upper shell 1.2.

[0043] The powertrain 3 includes a conveyor motor 3.1 fixed to the rear side of slot 1.2.2, a transmission mechanism 3.2 inserted into slot 1.2.2 for power transmission between the conveyor motor 3.1 and the conveying screw blade shaft 2, and an angle reducer 3.3 fixed to the corresponding position of shaft hole 1.2.3 for power transmission between the conveyor motor 3.1 and the loading screw blade shaft 4.3. The transmission mechanism 3.2 includes a vertical housing 3.2.1 inserted into the slot 1.2.2, a transmission wheel 3.2.3 rotatably mounted on the top and bottom of the inner cavity of the vertical housing 3.2.1, and a transmission belt 3.2.4 for transmission connection between the two transmission wheels 3.2.3. Connecting plates 3.2.2 are fixed on the two side walls of the vertical housing 3.2.1 at positions corresponding to the top surface of the upper housing 1.2. The connecting plates 3.2.2 are fixed to the top surface of the upper housing 1.2 with bolts. The transmission wheel 3.2.3 includes a bushing 3.2.3.2 whose front and rear ends are rotatably sleeved with the front and rear walls of the vertical housing 3.2.1, and a pulley 3.2.3.1 fixedly sleeved in the middle of the bushing 3.2.3.2. The front and rear ends of the upper bushing 3.2.3.2 are respectively sleeved on the power input shaft of the angle reducer 3.3 and the power output shaft of the conveying motor 3.1. The power output shaft of the angle reducer 3.3 is fixedly sleeved on the top end of the loading spiral blade shaft 4.3.

[0044] The front end of the conveying screw blade shaft 2 is fitted into the bottom bushing 3.2.3.2, and the rear end of the conveying screw blade shaft 2 is rotatably fitted into the bottom end of the bearing seat 1.2.4, that is, the conveying screw blade shaft 2 extends axially along the inner cavity of the semi-cylindrical shell 1.1.

[0045] The negative pressure fitting 6 includes a main pipe 6.1 arranged parallel to the material handling box 1, an output bend 6.3 connected to the end of the main pipe 6.1, and an input bend 6.2 connected to the side wall of the main pipe 6.1 and connected at the other end to the pipe head 1.2.1.

[0046] The dust removal unit 8 includes a cabinet 8.1 with clean water at the bottom, an axial flow fan 8.2 connected to the top of the side wall of the cabinet 8.1, and a filter element 8.3 located on the upper side of the middle of the inner cavity of the cabinet 8.1. The filter element 8.3 includes a rotatable cylindrical filter screen 8.3.3, and the rear wall of the cabinet 8.1 is provided with an air outlet that communicates with the top of the inner cavity of the cylindrical filter screen 8.3.3. The filter element 8.3 includes a frame-shaped component 8.3.1 that is fixedly attached to the upper inner wall of the middle part of the cabinet 8.1, an end plate 8.3.2 that is rotatably mounted on the front and rear ends of the inner cavity of the frame-shaped component 8.3.1, and a connecting shaft 8.3.4 that is fixedly fitted at the center of the end plate 8.3.2 and rotatably sleeved with the front and rear walls of the cabinet 8.1. A flip motor 8.4 with a power output shaft fixedly connected to the connecting shaft 8.3.4 is fixedly mounted on the front wall of the cabinet 8.1. The front and rear ends of the cylindrical filter screen 8.3.3 are respectively vertically fixed to the outer edge of the end plate 8.3.2. The rear end plate 8.3.2 has multiple air vents along the circumference near the outer edge. In addition, a water supply valve 8.1.2 and an air drain valve 8.1.3 are respectively installed at the top and bottom of the front wall of the cabinet 8.1. A pipe head 8.1.1 connected to the output end of the axial flow fan 8.2 is sleeved in the center of the top of the side wall of the cabinet 8.1. The water supply valve 8.1.2 allows for the replenishment of clean water into the cabinet 8.1 to ensure that the clean water covers the lower half of the cylindrical filter screen 8.3.3; the drain valve 8.1.3 is used to drain the sewage from the cabinet 8.1.

[0047] The bellows 9 is connected between the axial flow fan 8.2 and the output bend 6.3. The bellows 9 has the characteristics of being stretchable and flexible.

[0048] In summary, during use, the conveyor motor 3.1 is started, and through the power transmission of the transmission mechanism 3.2 and the angle reducer 3.3, the conveying screw blade shaft 2 and the loading screw blade shaft 4.3 rotate synchronously. The shovel plate 4.5 facilitates the shoveling of mortar material into the bottom of the inner cavity of the cover 4.2. The loading screw blade shaft 4.3 conveys the mortar material upward along the vertical cylinder 4.1 to the front end of the inner cavity of the semi-cylindrical shell 1.1. Then, the conveying screw blade shaft 2 conveys the mortar material backward until the mortar material enters the square shell 5.1 through the feed port 5.1.1, and is then discharged downward along the telescopic cylinder 5.2.

[0049] The axial flow fan 8.2 is started, causing dust generated during the loading process to sequentially enter the material handling box 1 through the cover 4.2 and the vertical cylinder 4.1. Dust generated during the unloading process sequentially enters the material handling box 1 through the telescopic cylinder 5.2 and the square shell 5.1 via the material inlet 5.1.1. Dust in the material handling box 1 enters the main pipe 6.1 through pipe head 1.2.1 and the input bend 6.2. Dust in the main pipe 6.1 enters the top of the inner cavity of the cabinet 8.1 through the corrugated pipe 9 and pipe head 8.1.1, and is then filtered by the cylindrical filter screen 8.3.3 before being discharged sequentially through the air inlet and the air outlet. Dust particles in the air discharged by the axial flow fan 8.2 are trapped on the surface of the cylindrical filter screen 8.3.3.

[0050] Start the flip motor 8.4 to drive the cylindrical filter screen 8.3.3 to rotate, so that the surface of the cylindrical filter screen 8.3.3 is washed with water in sequence to remove the dust particles trapped on its surface, thereby making it easier to maintain the continuous filtration capacity of the cylindrical filter screen 8.3.3.

[0051] In order to increase the filtration area for dust, multiple arc-shaped grooves 8.3.2.1 are uniformly provided along the circumference at the outer edge of the end plate 8.3.2, and the cylindrical filter screen 8.3.3 is provided with arc-shaped recesses 8.3.3.1 corresponding to the positions of the arc-shaped grooves 8.3.2.1.

[0052] To facilitate the movement of the integrated loading, transporting, and unloading structure, a walking frame 7 is installed at the bottom of the transport box 1.

[0053] To improve the cleaning effect on the surface of the cylindrical filter screen 8.3.3, a cleaning component 8.5 is provided in the inner cavity of the cabinet 8.1 below the cylindrical filter screen 8.3.3. The cleaning component 8.5 includes a longitudinal beam 8.5.1 with its front and rear ends vertically fixed to the front and rear walls of the inner cavity of the cabinet 8.1, a longitudinal rod 8.5.2 parallel to the longitudinal beam 8.5.1, bristles 8.5.3 on the longitudinal rod 8.5.2, a vertical rod 8.5.4 with its top end vertically fixed to the bottom surface of the longitudinal rod 8.5.2 and slidably connected to the longitudinal beam 8.5.1, and a spring 8.5.5 fitted onto the top of the vertical rod 8.5.4 and supported at its top and bottom ends by the bottom surface of the longitudinal rod 8.5.2 and the top surface of the longitudinal beam 8.5.1, respectively. This allows the portion of the cylindrical filter screen 8.3.3 with trapped dust particles to undergo simultaneous washing and brushing by the bristles 8.5.3 when rotated into water.

[0054] To ensure that the dust removal unit 8 can be moved synchronously with the integrated structure for loading, transporting and unloading, casters 8.1.4 are installed at the four corners of the bottom of the cabinet 8.1.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-preventing conveying device for processing concrete mortar raw materials, characterized in that, include: Material handling box (1), wherein the material handling box (1) is a strip-shaped shell structure with an open rear end; Material conveying screw blade shaft (2), which is rotatably installed at the bottom of the inner cavity of the material conveying box (1); The loading mechanism (4) includes a vertical cylinder (4.1) whose top end is fixedly sleeved on the bottom front end of the material conveying box (1), a cover (4.2) whose top end is connected to the bottom end of the vertical cylinder (4.1), and a loading spiral blade shaft (4.3) rotatably installed in the inner cavity of the vertical cylinder (4.1) and whose bottom end extends to the bottom of the inner cavity of the cover (4.2); The power assembly (3) is integrated at the front end of the material conveying box (1) and is used to drive the material conveying screw blade shaft (2) and the loading screw blade shaft (4.3) to rotate synchronously. The unloading mechanism (5) includes a square shell (5.1) fixed to the rear end of the material transport box (1) and a telescopic cylinder (5.2) connected to the bottom end of the square shell (5.1); Negative pressure fitting (6), the negative pressure fitting (6) includes a main pipe (6.1), a plurality of input elbows (6.2) for connecting the main pipe (6.1) and the material handling box (1), and an output elbow (6.3) connected to the end of the main pipe (6.1); The dust removal unit (8) includes a cabinet (8.1) with clean water at the bottom, an axial flow fan (8.2) connected to the top of the side wall of the cabinet (8.1), and a filter element (8.3) located on the upper side of the middle of the inner cavity of the cabinet (8.1). The filter element (8.3) includes a rotatable cylindrical filter screen (8.3.3). The rear wall of the cabinet (8.1) is provided with an air outlet communicating with the top of the inner cavity of the cylindrical filter screen (8.3.3). A bellows (9) is connected between the axial flow fan (8.2) and the output bend (6.3); Walking frame (7) is installed at the bottom of the material handling box (1).

2. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 1, characterized in that: The filter element (8.3) further includes a frame-shaped component (8.3.1) whose outer wall is correspondingly attached and fixed to the upper inner wall of the middle part of the cabinet (8.1), an end plate (8.3.2) which is rotatably clamped to the front and rear ends of the inner cavity of the frame-shaped component (8.3.1), and a connecting shaft (8.3.4) which is fixedly fitted to the center of the end plate (8.3.2) and rotatably connected to the front and rear walls of the cabinet (8.1). A flip motor (8.4) with a power output shaft fixedly connected to the connecting shaft (8.3.4) is fixed to the front wall of the cabinet (8.1). The front and rear ends of the cylindrical filter screen (8.3.3) are respectively vertically fixed to the outer edge of the end plate (8.3.2). The rear end plate (8.3.2) is provided with multiple air vents along the circumferential direction near the outer edge.

3. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 2, characterized in that: The end plate (8.3.2) has a plurality of arc-shaped grooves (8.3.2.1) evenly distributed along the circumference at the outer edge, and the cylindrical filter screen (8.3.3) has arc-shaped recesses (8.3.3.1) corresponding to the positions of the arc-shaped grooves (8.3.2.1).

4. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 3, characterized in that: The inner cavity of the cabinet (8.1) is provided with a cleaning component (8.5) located below the cylindrical filter screen (8.3.3). The top and bottom of the front wall of the cabinet (8.1) are respectively equipped with a water supply valve (8.1.2) and an air drain valve (8.1.3). The top of the side wall of the cabinet (8.1) is fitted with a pipe head two (8.1.1) connected to the output end of the axial flow fan (8.2). Casters (8.1.4) are installed at the four corners of the bottom of the cabinet (8.1).

5. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 4, characterized in that: The cleaning component (8.5) includes a longitudinal beam (8.5.1) with its front and rear ends vertically fixed to the front and rear walls of the inner cavity of the cabinet (8.1), a longitudinal rod (8.5.2) parallel to the longitudinal beam (8.5.1), bristles (8.5.3) on the longitudinal rod (8.5.2), a vertical rod (8.5.4) with its top end vertically fixed to the bottom surface of the longitudinal rod (8.5.2) and slidably connected to the longitudinal beam (8.5.1), and a spring (8.5.5) fitted on the top of the vertical rod (8.5.4) and supported at its top and bottom ends on the bottom surface of the longitudinal rod (8.5.2) and the top surface of the longitudinal beam (8.5.1), respectively.

6. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 1, characterized in that: The material handling box (1) includes a semi-cylindrical shell (1.1) and an upper shell (1.2) that is fastened to the top of the semi-cylindrical shell (1.1). The bottom front end of the semi-cylindrical shell (1.1) is provided with a bottom hole that is fixedly sleeved with the top end of the vertical cylinder (4.1). 1.1.1) The top surface of the upper housing (1.2) is provided with a plurality of pipe heads (1.2.1) that are respectively connected to the input bend (6.2). The middle part of the top surface of the rear end of the inner cavity of the upper housing (1.2) is fixed with a bearing seat (1.2.4) whose bottom end is rotatably sleeved with the rear end of the conveying screw blade shaft (2).

7. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 6, characterized in that: The upper housing (1.2) has a slot (1.2.2) on the top surface near the front end. The slot (1.2.2) has a shaft hole (1.2.3) on the front side. The power assembly (3) includes a conveyor motor (3.1) fixed to the rear side of the slot (1.2.2), a transmission mechanism (3.2) inserted into the slot (1.2.2) for power transmission between the conveyor motor (3.1) and the conveying screw blade shaft (2), and an angle reducer (3.3) fixed to the corresponding position of the shaft hole (1.2.3) for power transmission between the conveyor motor (3.1) and the loading screw blade shaft (4.3).

8. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 7, characterized in that: The transmission mechanism (3.2) includes a vertical housing (3.2.1) inserted into the slot (1.2.2), a transmission wheel (3.2.3) rotatably mounted on the top and bottom of the inner cavity of the vertical housing (3.2.1), and a transmission belt (3.2.4) for transmission connection between the two transmission wheels (3.2.3). Connecting plates (3.2.2) are fixed to the two side walls of the vertical housing (3.2.1) at positions corresponding to the top surface of the upper housing (1.2). The connecting plates (3.2.2) are bolted to the top surface of the upper housing (1.2). The transmission wheel (3.2.3) includes front and rear ends. The bushings (3.2.3.2) are rotatably sleeved with the front and rear walls of the vertical housing (3.2.1) respectively, and the pulley (3.2.3.1) is fixedly sleeved in the middle of the bushings (3.2.3.2). The front and rear ends of the upper bushings (3.2.3.2) are respectively sleeved with the power input shaft of the angle reducer (3.3) and the power output shaft of the conveying motor (3.1). The bottom bushings (3.2.3.2) are sleeved on the front end of the conveying screw blade shaft (2). The power output shaft of the angle reducer (3.3) is fixedly sleeved with the top end of the loading screw blade shaft (4.3).

9. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 6, characterized in that: The front wall of the square shell (5.1) is provided with a material port (5.1.1) that connects with the rear end of the semi-cylindrical shell (1.1) and the upper shell (1.2). The top of the front end of the square shell (5.1) is provided with a card plate (5.3) that extends squarely and is fixedly engaged with the rear end of the upper shell (1.2).

10. The dust-preventing conveying equipment for processing concrete mortar raw materials according to claim 1, characterized in that: The top of the inner cavity of the vertical cylinder (4.1) is fixed with a shaft frame (4.6) that is rotatably sleeved with the top of the loading spiral blade shaft (4.3). The bottom rear side and both sides of the cover (4.2) are fixedly connected with C-shaped plates (4.4), and the bottom end of the C-shaped plates (4.4) is fixed with a shovel plate (4.5).

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