Concrete raw material screw conveyor

Abstract

The utility model relates to the technical field of conveying devices, in particular to a concrete raw material screw conveyor which comprises a main screw conveying structure, a first lifting seat capable of vertically lifting is arranged below one end of the main screw conveying structure, and a second lifting seat capable of vertically lifting is arranged below the middle end of the main screw conveying structure. An auxiliary spiral conveying structure is arranged below the end, away from the lifting base, of the main spiral conveying structure and matched with the displacement assembly, and the displacement direction of the auxiliary spiral conveying structure through the displacement assembly is consistent with the raw material conveying direction of the main spiral conveying structure. The main spiral conveying structure comprises a feeding channel, a first rodless spiral piece is arranged in the feeding channel, an opening is formed in the top of the feeding channel so that the first rodless spiral piece in the feeding channel can be exposed, and a plurality of cleaning assemblies are arranged above the opening of the feeding channel and arranged in the raw material conveying direction of the main spiral conveying structure. The spiral conveyor solves the technical problems that the conveying distance of an existing spiral conveyor is limited, and cleaning is difficult.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices, in particular to a screw conveyor for concrete raw materials. Background Art

[0002] The transportation of concrete raw materials is a crucial step in the concrete preparation process. Concrete raw materials typically include cement, water, aggregates (such as sand and gravel), and admixtures (such as water reducers and retarders). At the concrete plant or construction site, these raw materials need to be accurately transported to the mixing equipment to ensure the quality and performance of the concrete. A screw conveyor is a type of conveying equipment with an enclosed structure, suitable for conveying a variety of powdered, granular, and small-block materials. It utilizes the rotational motion of the spiral blades to transport the material along a fixed spiral trough to the designated location. In the transportation of concrete raw materials, screw conveyors are commonly used to transport powdered materials such as cement and fly ash. They have the characteristics of simple structure, small footprint, good sealing, and high conveying efficiency.

[0003] However, the current screw conveyor has a fixed height for transporting raw materials, and the angle of the conveyor belt cannot be adjusted by itself, so it cannot meet the requirements of transporting at different heights and has certain usage restrictions.

[0004] The Chinese utility model patent, entitled "A Concrete Raw Material Conveying Device," with publication number CN219276247U, has been published. The patent includes a conveyor drum, which is rotatably connected to a rotating shaft with spiral conveyor blades fixed to the shaft. One end of the rotating shaft extends outside the conveyor drum and connects to a drive motor, which is connected to the conveyor drum via a fixed bracket. The conveyor drum is equipped with a connection structure and an angle adjustment structure at each end. This utility model pre-mixes the concrete raw materials during conveying, improving the concrete mixing effect and saving mixing time. The conveyor drum's tilt angle can also be adjusted to better adapt the feeding device to mixers of different specifications.

[0005] This device can be used for conveying requirements at different heights, but it can only convey concrete raw materials over a fixed distance, which still has certain limitations. Moreover, its internal feeding channel is closed, making subsequent cleaning difficult. Utility Model Content

[0006] The purpose of this application is to provide a concrete raw material screw conveyor, which solves the technical problems of existing screw conveyors that the conveying distance is limited and cleaning is difficult.

[0007] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0008] A concrete raw material screw conveyor includes a main screw conveying structure, a first lifting seat that can be vertically lifted is arranged below one end of the main screw conveying structure, a second lifting seat that can be vertically lifted is arranged below the middle end of the main screw conveying structure, and a secondary screw conveying structure is arranged below the end of the main screw conveying structure away from the lifting seat. The secondary screw conveying structure is matched with a displacement component, and the direction in which the secondary screw conveying structure is displaced by the displacement component is consistent with the raw material conveying direction of the main screw conveying structure.

[0009] Preferably, the main spiral conveying structure includes a feeding channel, a first rodless spiral piece is arranged inside the feeding channel, an opening is provided at the top of the feeding channel, so that the first rodless spiral piece in the feeding channel is exposed, and a plurality of cleaning components are arranged above the opening of the feeding channel and arranged along the raw material conveying direction of the main spiral conveying structure.

[0010] Preferably, the main spiral conveying structure includes a first motor, which is fixed at one end of the feeding channel and fixedly connected to the first rodless spiral piece inside the feeding channel, and the outer diameter of the first rodless spiral piece matches the circular channel in the feeding channel.

[0011] Preferably, a collecting funnel is fixedly provided above the feeding channel near the first motor, and a first discharge port is provided at the bottom of one end of the feeding channel away from the collecting funnel, and the first discharge port passes through the circular channel in the feeding channel.

[0012] Preferably, a baffle is provided between the opening of the feeding channel and the first rodless spiral piece, the inner wall of the baffle is arc-shaped, and its inner wall matches the outer diameter shape of the first rodless spiral piece, and a gap is provided between the inner wall of the baffle and the outer diameter of the first rodless spiral piece;

[0013] Preferably, the blocking piece extends along the conveying direction of the first rodless spiral piece and corresponds to the first rodless spiral piece at the entire opening of the feeding channel.

[0014] Preferably, the cleaning assembly includes an adjusting slider, the top surface of the feeding channel is provided with a top surface slide groove along the raw material conveying direction, the adjusting slider is slidably set in the top surface slide groove, a cylinder is fixedly provided on the adjusting slider, the cylinder is located above the opening of the feeding channel, the axial direction of the cylinder is perpendicular to the raw material conveying direction, at least three cleaning heads are rotatably provided on the cylinder, and the water spray outlet of the cleaning head is facing the first rodless spiral piece.

[0015] Preferably, the corresponding positions of the two cleaning heads on both sides of the cylinder are respectively located between the first rodless spiral sheet and the baffle, and the corresponding position of the cleaning head in the middle of the cylinder is located above the first rodless spiral sheet.

[0016] Preferably, the main spiral conveying structure further includes a first water outlet that can be opened and closed. The first water outlet is located at the bottom of one end of the feeding channel close to the first motor, and the first water outlet passes through the circular channel in the feeding channel.

[0017] Preferably, the auxiliary spiral conveying structure includes a feeding auxiliary channel, which is slidably arranged at the bottom of the feeding channel and located at the first discharge port. An opening is provided at the top of the feeding auxiliary channel, and the first discharge port is connected with the circular channel in the feeding auxiliary channel through the opening. A second rodless spiral piece is rotatably arranged in the circular channel in the feeding channel, and the outer diameter of the second rodless spiral piece matches the circular channel. A second motor is fixedly provided at one end outside the feeding auxiliary channel, and the driving shaft of the second motor is fixedly connected to the second rodless spiral piece. A second discharge port is provided at the bottom of the end of the feeding auxiliary channel away from the second motor.

[0018] Preferably, a second water outlet is provided at the bottom of one end of the feeding auxiliary channel close to the second motor.

[0019] Preferably, the displacement assembly includes a screw, the auxiliary spiral conveying structure includes a slide, the slide is fixedly mounted on both sides of the feed auxiliary channel, the slide is matched with the bottom surface of the feed auxiliary channel through a slide slot, a screw is threaded through the slide on one side, the screw matches the slide thread, and one end of the screw is fixedly mounted on the third motor

[0020] Preferably, the first lifting seat includes a first supporting seat, and the first lifting seat is slidably arranged on the first supporting seat. The sliding direction of the first lifting seat is vertical. The top of the first lifting seat is rotatably connected to the outer wall of the feeding channel, and the bottom of the first lifting seat is fixedly connected to the hydraulic rod of the first hydraulic cylinder. The first hydraulic cylinder is fixedly arranged on the first supporting seat.

[0021] Preferably, the second lifting seat includes a second supporting seat, a second lifting seat is slidably arranged on the second supporting seat, the sliding direction of the second lifting seat is vertical, a side slide groove is provided on the outer wall of the middle part of the feeding channel, the top of the second lifting seat is slidably connected to the side slide groove, the bottom of the second lifting seat is fixedly connected to the hydraulic rod of the second hydraulic cylinder, and the second hydraulic cylinder is fixedly arranged on the second supporting seat.

[0022] The technical solution of this application has at least the following advantages and beneficial effects:

[0023] In the utility model, by setting up two main and auxiliary spiral conveying structures, and by using a displacement component to change the position of the auxiliary spiral conveying structure, the concrete raw materials can be transported to construction locations at different lengths and distances without moving the entire device;

[0024] In the present invention, by exposing the conveying channel and arranging a cleaning component at the exposed part, it is convenient for the staff to observe the blockage situation during the raw material conveying, and the conveying channel can be directly flushed through the cleaning component, so that the device can be cleaned more quickly.

[0025] In the utility model, a contoured baffle is provided between the feeding channel and the rodless spiral blade to prevent the concrete raw materials from accumulating at the opening corner of the channel and causing blockage.

[0026] In the present invention, two vertically liftable lifting seats are provided to adjust the height and angular position of the entire spiral conveying structure to adapt to different construction scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 It is a structural schematic diagram of a left view in a specific embodiment of the device.

[0029] Figure 3 It is a schematic cross-sectional structural diagram of a specific embodiment of the device.

[0030] Figure 4 It is a schematic structural diagram of a top view of a specific embodiment of the device.

[0031] Figure 5 This is a schematic cross-sectional structural diagram of a feeding channel in a specific embodiment of the device.

[0032] Figure 6 This is a structural schematic diagram from another angle in a specific embodiment of the device.

[0033] In the figure: 1-main screw conveying structure, 101-feeding channel, 102-aggregation funnel, 103-first rodless spiral plate, 104-first motor, 105-first connecting column, 106-blocking plate, 107-first discharge port, 108-first water outlet, 109-top chute, 110-side chute, 2-first lifting seat, 201-first support seat, 202-first lifting frame, 203-first hydraulic cylinder, 3-second lifting seat, 301- Second support seat, 302-second lifting frame, 303-second hydraulic cylinder, 4-cleaning assembly, 401-adjusting slider, 402-cylinder, 403-water spray head, 5-pair spiral conveying structure, 501-feeding auxiliary channel, 502-second rodless spiral blade, 503-second connecting column, 504-second motor, 505-second discharge port, 506-second water outlet, 507-slide plate, 6-displacement assembly, 601-screw, 602-third motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition or explanation in subsequent figures. Terms such as "center," "upper," "lower," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the figures, or the positions or locations in which the product is typically placed when in use. These terms are used solely for ease of description and simplification of the present application. They do not indicate or imply that the device or component referred to must have a specific position, be constructed, or operate in a specific orientation, and are not to be construed as limiting the present application. It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections or indirect connections through an intermediary; or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application in specific contexts.

[0036] Example

[0037] Please refer to Figures 1-6 The utility model provides a concrete raw material screw conveyor, including a main screw conveying structure 1, a first lifting seat 2, a second lifting seat 3, a cleaning component 4, a secondary screw conveying structure 5, and a displacement component 6.

[0038] Furthermore, the main spiral conveying structure 1 is the main body of the device for transporting concrete raw materials, and is responsible for mixing the input concrete raw materials and transporting them to the designated location and height.

[0039] Furthermore, a first lifting seat 2 that can be vertically lifted is provided below one end of the main spiral conveying structure 1, and a second lifting seat 3 that can be vertically lifted is provided below the middle end of the main spiral conveying structure 1. The two lifting seats can lift the main spiral conveying structure 1.

[0040] When the two lifting seats are raised and lowered to the same height, the vertical height of the entire main spiral conveying structure 1 can be adjusted, so that the feeding position height of the main spiral conveying structure 1 is changed to adapt to the different feeding heights of the external machinery; when the second lifting seat 3 rises to a higher height than the first lifting seat 2, the height position of the first discharge port 107 in the main spiral conveying structure 1 can be adjusted, so that the discharge position height of the main spiral conveying structure 1 is changed to adapt to concrete construction environments at different heights.

[0041] Furthermore, a secondary spiral conveying structure 5 is provided at the first discharge port 107 in the main spiral conveying structure 1, so that the concrete raw materials in the main spiral conveying structure 1 are transported to the secondary spiral conveying structure 5. The secondary spiral conveying structure 5 is matched with the displacement component 6, and can be displaced along the raw material conveying direction of the main spiral conveying structure 1 through the displacement component 6, so that the secondary spiral conveying structure 5 extends from the discharge position end of the main spiral conveying structure 1, so that the concrete raw materials are transported to the external environment from the second discharge port 505 extended from the secondary spiral conveying structure 5, and the displacement distance extended by the secondary spiral conveying structure 5 can transport raw materials to construction locations of different lengths without moving the entire device.

[0042] Furthermore, the main spiral conveying structure 1 also includes a feeding channel 101 and a first rodless spiral piece 103. A circular channel is provided inside the feeding channel 101. The first rodless spiral piece 103 rotates in the circular channel and conveys concrete raw materials through its spiral blades. An opening is provided at the top of the feeding channel 101, so that the first rodless spiral piece 103 in the feeding channel 101 is exposed, which is convenient for outside personnel to observe the blockage situation of the first rodless spiral piece 103 when conveying raw materials in real time.

[0043] In addition, a plurality of cleaning components 4 are provided above the opening of the feeding channel 101 and are arranged along the raw material conveying direction of the main spiral conveying structure 1. During the cleaning process after the raw material conveying is completed, water can be directly sprayed onto the first rodless spiral sheet 103 and the feeding channel 101, and the device can be quickly cleaned by the impact of the water flow.

[0044] In some feasible embodiments, the main spiral conveying structure 1 includes a feeding channel 101, a collecting funnel 102, a first rodless spiral blade 103, a first motor 104, a first connecting column 105, a baffle 106, a first discharge port 107, a first water outlet 108, a top chute 109, and a side chute 110.

[0045] Specifically, the first motor 104 is fixed to one end of the feeding channel 101 and is fixedly connected to the first rodless spiral piece 103 inside the feeding channel 101. The connection between the first motor 104 and the first rodless spiral piece 103 is fixedly connected with a first connecting column 105 to increase the connection stability between the spiral piece and the first motor 104 (the other end of the first rodless spiral piece 103 is also rotatably connected to the other end of the feeding channel 101 through the first connecting column 105). The feeding channel 101 is close to the first motor 104. A collection funnel 102 is fixedly installed above 104, which is responsible for collecting the concrete raw materials of the input device and dropping them into the feeding channel 101. A first discharge port 107 is provided at the bottom of the end of the feeding channel 101 away from the collection funnel 102. The first discharge port 107 passes through the circular channel in the feeding channel 101. When the concrete raw materials at the collection funnel 102 are rotated and transported by the first rodless spiral sheet 103, they will move to the first discharge port 107 and be transported to the outside or to the auxiliary spiral conveying structure 5.

[0046] The axis of the first rodless spiral 103 is a through hole without a central shaft, thereby increasing the space between the spirals and accommodating more concrete raw materials for transportation.

[0047] The outer diameter of the first rodless spiral blade 103 matches and fits the circular channel in the feeding channel 101, and the gap is small, so that the spiral blade can effectively scrape off the concrete raw materials attached to the circular channel for transportation. The surface of the circular channel is a wear-resistant steel layer, which can maintain a longer service life under the friction generated when transporting the concrete raw materials.

[0048] Specifically, baffles 106 are provided on the wall surfaces on both sides of the opening of the feeding channel 101. The baffles 106 are fixedly set on the opening wall surface of the feeding channel 101. The inner wall of the baffle 106 facing the first rodless spiral piece 103 is arc-shaped, and its inner wall matches the outer diameter shape of the first rodless spiral piece 103. A gap is provided between the inner wall of the baffle 106 and the outer diameter of the first rodless spiral piece 103.

[0049] Because the opening of the feeding channel 101 is a vertical opening, when the first rodless spiral 103 transports concrete raw materials, a portion of the raw materials that rotate with the spiral will be pushed to the opening and accumulate between the opening and the spiral, causing blockage. The arc-shaped inner wall of the baffle 106 can re-introduce the concrete raw materials pushed to the opening into the first rodless spiral 103 to prevent them from accumulating at the opening.

[0050] The blocking piece 106 extends along the conveying direction of the first rodless spiral piece 103 and matches with the first rodless spiral piece 103 at the entire opening of the feeding channel 101, and performs an anti-accumulation treatment on the entire opening.

[0051] In some feasible embodiments, the cleaning component 4 includes an adjusting slider 401 , a cylinder 402 , and a water spray head 403 .

[0052] Specifically, the top surface of the feeding channel 101 is provided with a top surface slide groove along the raw material conveying direction, and the adjustment slider 401 is slidably set in the top surface slide groove. There is a certain friction between the two, and the adjustment slider 401 will not slide arbitrarily to change the water spraying position.

[0053] A cylinder 402 is fixedly mounted on the adjusting slider 401 , and the cylinder 402 is located above the opening of the feeding channel 101 . The axial direction of the cylinder 402 is perpendicular to the raw material conveying direction. At least three cleaning heads are rotatably mounted on the cylinder 402 , and the water spray ports of the cleaning heads face the first rodless spiral blade 103 .

[0054] The water spray head 403 is set on the cylinder 402 through a tight hoop. The water spray head 403 can be rotated by adjusting the tightness of the tight hoop to adjust the water spraying angle. The rear end of the water spray head 403 is connected to a water pipe for water supply.

[0055] The corresponding positions of the two cleaning heads on both sides of the cylinder 402 are respectively located between the first rodless spiral piece 103 and the baffle 106, and the gap between the first rodless spiral piece 103 and the baffle 106 is cleaned to flush away the accumulated concrete raw materials.

[0056] The corresponding position of the cleaning head in the middle of the cylinder 402 is located above the first rodless spiral piece 103, and the first rodless spiral piece 103 is cleaned to flush away the concrete raw materials attached to the blades.

[0057] A first water outlet 108 that can be opened and closed is provided at the bottom of one end of the feeding channel 101 close to the first motor 104. The first water outlet 108 runs through the circular channel in the feeding channel 101, and is sprayed with water through the sprinkler head 403. Then, the first water outlet 108 is opened to allow the flushed raw materials to flow out from the first water outlet 108.

[0058] In some feasible embodiments, the auxiliary spiral conveying structure 5 includes a feeding auxiliary channel 501, a second rodless spiral blade 502, a second connecting column 503, a second motor 504, a second discharge port 505, a second water outlet 506, and a slide plate 507.

[0059] Specifically, the feeding auxiliary channel 501 is slidingly set at the bottom of the feeding channel 101, located at the first discharge port 107. An opening is set at the top of the feeding auxiliary channel 501. The first discharge port 107 is connected to the circular channel in the feeding auxiliary channel 501 through the opening, and the concrete raw materials in the main spiral conveying structure 1 are input into the auxiliary spiral conveying structure 5 for conveying a longer distance.

[0060] A second rodless spiral is rotatably arranged in the circular channel within the feeding channel 101, and the outer diameter of the second rodless spiral matches the circular channel. A second motor 504 is fixedly arranged at one end outside the feeding sub-channel 501, and the driving shaft of the second motor 504 is fixedly connected to the second rodless spiral. A second discharge port 505 is arranged at the bottom of the end of the feeding sub-channel 501 away from the second motor 504, and a second water outlet 506 is arranged at the bottom of the end of the feeding sub-channel 501 close to the second motor 504.

[0061] The entire auxiliary spiral conveying structure 5 is similar to the main spiral conveying structure 1. Both realize the conveyance of concrete raw materials by the rotation of the rodless spiral piece and convey them to the discharge port. Both discharge the cleaned raw materials through the openable and closable water outlet.

[0062] The structure of the second rodless spiral is the same as that of the first rodless spiral 103. The second discharge port 505 is the final outlet of the entire device. When there is no need to transport a long distance, the auxiliary spiral conveying structure 5 is driven by the displacement component 6 to displace in the direction opposite to the raw material conveying direction, so that the first discharge port 107 is separated from the circular channel in the feeding sub-channel 501 and is no longer connected. The concrete raw materials are directly input to the outside from the first discharge port 107; when a long distance is required to be transported, the auxiliary spiral conveying structure 5 is driven by the displacement component 6 to displace in the direction same as the raw material conveying direction, so that the first discharge port 107 is connected to the circular channel in the feeding sub-channel 501, and the concrete raw materials are input to the outside from the second discharge port 505.

[0063] In some feasible embodiments, the displacement assembly 6 includes a screw 601 and a third motor 602 .

[0064] Slide plates 507 are fixedly installed on both sides of the feeding auxiliary channel 501. The slide plates 507 are matched with the bottom surface of the feeding auxiliary channel 501 through a slide groove, so that the slide plates 507 will not be separated from the feeding auxiliary channel 501. A screw rod 601 is threaded through the slide plate 507 on one side, and the screw rod 601 is matched with the slide plate 507 thread. One end of the screw rod 601 is fixedly installed on the third motor 602, and the third motor 602 is fixedly installed on the bottom surface of the feeding channel 101.

[0065] When the third motor 602 drives the screw 601 to rotate, it will drive the feeding auxiliary channel 501 to move along the raw material conveying direction, extending the length of the second discharge port 505. In this way, concrete raw materials can be conveyed to construction sites at different lengths without adjusting the position of the entire device.

[0066] In some feasible embodiments, the first lifting base 2 includes a first supporting base 201 , a first lifting frame 202 , and a first hydraulic cylinder 203 .

[0067] Specifically, a first lifting seat 2 is slidingly arranged on the first support seat 201. The sliding direction of the first lifting seat 2 is vertical. The top of the first lifting seat 2 is rotatably connected to the outer wall of the feeding channel 101. The bottom of the first lifting seat 2 is fixedly connected to the hydraulic rod of the first hydraulic cylinder 203. The first hydraulic cylinder 203 is fixedly arranged on the first support seat 201, and the height of one end of the feeding channel 101 is lifted by the first hydraulic cylinder 203.

[0068] In some feasible embodiments, the second lifting base 3 includes a second support base 301 , a second lifting frame 302 , and a second hydraulic cylinder 303 .

[0069] Specifically, the second lifting seat 3 includes a second support seat 301, and the second lifting seat 3 is slidably arranged on the second support seat 301. The sliding direction of the second lifting seat 3 is vertical. A side slide groove 110 is provided on the outer wall of the middle part of the feeding channel 101. The top of the second lifting seat 3 is slidably connected to the side slide groove 110, and the bottom of the second lifting seat 3 is fixedly connected to the hydraulic rod of the second hydraulic cylinder 303. The second hydraulic cylinder 303 is fixedly arranged on the second support seat 301. The middle part of the feeding channel 101 is lifted by the second hydraulic cylinder 303, and the feeding angle of the feeding channel 101 can also be changed by cooperating with the first hydraulic cylinder 203.

[0070] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A concrete raw material screw conveyor, characterized in that: The invention comprises a main spiral conveying structure (1), wherein a first lifting seat (2) capable of vertically lifting is provided below one end of the main spiral conveying structure (1), a second lifting seat (3) capable of vertically lifting is provided below the middle end of the main spiral conveying structure (1), and a secondary spiral conveying structure (5) is provided below one end of the main spiral conveying structure (1) away from the lifting seat, wherein the secondary spiral conveying structure (5) is matched with a displacement component (6), and the direction in which the secondary spiral conveying structure (5) is displaced by the displacement component (6) is consistent with the raw material conveying direction of the main spiral conveying structure (1); The main spiral conveying structure (1) includes a feeding channel (101), a first rodless spiral piece (103) is provided inside the feeding channel (101), an opening is provided at the top of the feeding channel (101), so that the first rodless spiral piece (103) in the feeding channel (101) is exposed, and a plurality of cleaning components (4) are provided above the opening of the feeding channel (101) and are arranged along the raw material conveying direction of the main spiral conveying structure (1).

2. A concrete raw material screw conveyor according to claim 1, characterized in that: The main spiral conveying structure (1) includes a first motor (104), the first motor (104) is fixed to one end of the feeding channel (101), and is fixedly connected to a first rodless spiral piece (103) inside the feeding channel (101), and the outer diameter of the first rodless spiral piece (103) matches the circular channel in the feeding channel (101); A collecting funnel (102) is fixedly provided above the feeding channel (101) near the first motor (104), and a first discharge port (107) is provided at the bottom of one end of the feeding channel (101) away from the collecting funnel (102), and the first discharge port (107) passes through the circular channel in the feeding channel (101).

3. A concrete raw material screw conveyor according to claim 2, characterized in that: A baffle (106) is provided between the opening of the feeding channel (101) and the first rodless spiral piece (103); the inner wall of the baffle (106) is arc-shaped, and its inner wall matches the outer diameter shape of the first rodless spiral piece (103); and a gap is provided between the inner wall of the baffle (106) and the outer diameter of the first rodless spiral piece (103); The blocking piece (106) extends along the conveying direction of the first rodless spiral piece (103) and corresponds to the first rodless spiral piece (103) at the entire opening of the feeding channel (101).

4. A concrete raw material screw conveyor according to claim 1, characterized in that: The cleaning assembly (4) includes an adjusting slider (401), a top surface of the feeding channel (101) is provided with a top surface chute along the raw material conveying direction, the adjusting slider (401) is slidably provided in the top surface chute, a cylinder (402) is fixedly provided on the adjusting slider (401), the cylinder (402) is located above the opening of the feeding channel (101), the axial direction of the cylinder (402) is perpendicular to the raw material conveying direction, at least three cleaning heads are rotatably provided on the cylinder (402), and the water spray ports of the cleaning heads are directed toward the first rodless spiral sheet (103); The corresponding positions of the two cleaning heads on both sides of the cylinder (402) are respectively located between the first rodless spiral sheet (103) and the baffle (106), and the corresponding position of the cleaning head in the middle of the cylinder (402) is located above the first rodless spiral sheet (103).

5. The concrete raw material screw conveyor according to claim 1, characterized in that: The main spiral conveying structure (1) further comprises a first water outlet (108) that can be opened and closed. The first water outlet (108) is located at the bottom of one end of the feeding channel (101) close to the first motor (104). The first water outlet (108) passes through the circular channel in the feeding channel (101).

6. A concrete raw material screw conveyor according to claim 1, characterized in that: The auxiliary spiral conveying structure (5) includes a feeding auxiliary channel (501), the feeding auxiliary channel (501) is slidingly arranged at the bottom of the feeding channel (101), and is located at the first discharge port (107); an opening is provided at the top of the feeding auxiliary channel (501), and the first discharge port (107) is connected to the circular channel in the feeding auxiliary channel (501) through the opening; a second rodless spiral piece is rotatably arranged in the circular channel in the feeding channel (101), and the outer diameter of the second rodless spiral piece matches the circular channel; a second motor (504) is fixedly arranged at one end outside the feeding auxiliary channel (501), and a driving shaft of the second motor (504) is fixedly connected to the second rodless spiral piece; a second discharge port (505) is provided at the bottom of one end of the feeding auxiliary channel (501) away from the second motor (504); A second water outlet (506) is provided at the bottom of one end of the feeding auxiliary channel (501) close to the second motor (504).

7. The concrete raw material screw conveyor according to claim 1, characterized in that: The displacement assembly (6) includes a screw (601), and the auxiliary spiral conveying structure (5) includes a slide plate (507). The slide plates (507) are fixedly mounted on both sides of the feeding auxiliary channel (501). The slide plates (507) and the bottom surface of the feeding auxiliary channel (501) are matched through a slide groove. A screw (601) is threadedly passed through the slide plate (507) on one side. The screw (601) and the slide plate (507) are threadedly matched. One end of the screw (601) is fixedly mounted on the third motor (602).

8. The concrete raw material screw conveyor according to claim 1, characterized in that: The first lifting seat (2) comprises a first supporting seat (201), the first lifting seat (2) is slidingly arranged on the first supporting seat (201), the sliding direction of the first lifting seat (2) is a vertical direction, the top of the first lifting seat (2) is rotatably connected to the outer wall of the feeding channel (101), the bottom of the first lifting seat (2) is fixedly connected to the hydraulic rod of the first hydraulic cylinder (203), and the first hydraulic cylinder (203) is fixedly arranged on the first supporting seat (201).

9. The concrete raw material screw conveyor according to claim 1, characterized in that: The second lifting seat (3) includes a second support seat (301), a second lifting seat (3) is slidably arranged on the second support seat (301), the sliding direction of the second lifting seat (3) is vertical, a side sliding groove (110) is arranged on the outer wall of the middle part of the feeding channel (101), the top of the second lifting seat (3) is slidably connected to the side sliding groove (110), the bottom of the second lifting seat (3) is fixedly connected to the hydraulic rod of the second hydraulic cylinder (303), and the second hydraulic cylinder (303) is fixedly arranged on the second support seat (301).

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