Automatic bag opening, water reducing and compounding system

Abstract

The utility model belongs to the field of polycarboxylate superplasticizer production, and discloses an automatic bag-opening water-reducing compounding system which comprises bagged powder, a water reducer mixing tank body, a slump-grinding mother liquor tank, a water-reducing mother liquor tank, a water tank and a bag breaking machine, and the slump-grinding mother liquor tank and the water-reducing mother liquor tank are respectively communicated with two liquid waiting bins through pipelines. According to the system, through the arrangement of the bag breaking machine, the functions that powder is automatically fed in a whole bag mode and quantitative feeding is conducted after movable bag breaking are achieved, and the problems that in the prior art, powder metering can only take the bag as the unit, and the formula design is limited are effectively solved; bag breaking, carrying and adding need to be completed manually, and powder escapes and is sucked in, so that uncomfortable reaction can be generated; liquid needs to be added after being metered manually, and loss and waste exist in the weighing process; the configuration process needs to be concerned by personnel in the whole process, and the intelligent level is insufficient.

Description

Technical Field

[0001] The utility model belongs to the field of polycarboxylate water - reducing agent production, and particularly relates to an automatic bag - opening water - reducing compounding system. Background Art

[0002] The compounding of water - reducing agents requires the mixing of various raw materials, including liquids and bagged powders (25 Kg / bag). In the prior art, for the convenience of configuration, the dosage of powders is mostly in bags, and manual handling and addition are required. Among them, excessive inhalation of sodium metabisulfite, sodium gluconate, etc. stimulates the respiratory system, causing cough and asthma. The dosage of liquids needs to be measured in advance and then added.

[0003] The following problems mainly exist:

[0004] 1. The powder metering is in bags, which limits the formulation design;

[0005] 2. Bag breaking, handling, and addition all need to be completed manually. The escape and inhalation of powder will cause discomfort reactions;

[0006] 3. The dosage of liquids needs to be measured manually and then added separately, and there are losses and wastes during the weighing process;

[0007] 4. The configuration process requires full - time attention of personnel, and the level of intelligence is insufficient. Content of the Utility Model

[0008] The purpose of the utility model is to provide an automatic bag - opening water - reducing compounding system to solve the above - mentioned technical problems.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An automatic bag - opening water - reducing compounding system includes bagged powders, a water - reducing agent mixing tank body, a slump - loss reducing mother liquid tank, a water - reducing mother liquid tank, a water tank, and also includes a bag - breaking machine. The slump - loss reducing mother liquid tank and the water - reducing mother liquid tank are respectively communicated with two liquid waiting bins through pipelines. The output end of the bag - breaking machine is fixedly installed with a screw conveyor. The screw conveyor is communicated with the main pipe of an intelligent three - way valve through a pipeline. The two branch pipes of the intelligent three - way valve are respectively communicated with two powder waiting bins. The two liquid waiting bins and the two powder waiting bins are all communicated with the water - reducing agent mixing tank body through pipelines. The water tank is communicated with the water - reducing agent mixing tank body through a pipeline;

[0011] The bag breaking machine includes a shell, a bag breaking conveyor device is fixedly installed on the bottom of the inner wall of the shell, a bag feeding box is arranged above the input end of the bag breaking conveyor device, the bag feeding box is fixedly installed with the shell, a feeding port of the bag feeding box passes through the top of the shell and is installed with a top cover, a plurality of bagged powder materials are stacked vertically inside the bag feeding box, the bag breaking conveyor device cuts the bagged powder materials, and the powder materials inside the bag fall to the bottom of the shell, a bag recovery device is arranged inside the shell at the output end corresponding to the bag breaking conveyor device, the bag of the bagged powder materials is lifted to the bag recovery guide plate by the bag recovery device, the bag slides to the input end of the recovery conveyor device through the bag recovery guide plate, the output end of the recovery conveyor device extends into the interior of the recovery box, the recovery box is fixedly installed on the top of the shell, and the top of the recovery box extends out of the top of the shell and is provided with a recovery cover.

[0012] In a preferred embodiment of the utility model, a lower leakage groove is provided in the middle part of the bag breaking conveying device along the transmission direction, a tearing mechanism is provided in the lower leakage groove near the input end, a plurality of pushing plates are provided at equal distances on the conveying belt surface of the bag conveying device along the transmission direction, the bagged powder is provided on the top of the conveyor belt and between two adjacent pushing plates, two bag folding guide blocks are provided on both sides of the top of the bag breaking conveying device and near the output end, the two bag folding guide blocks are symmetrically arranged, and the bagged powder is folded upward through the two bag folding guide blocks to pour the powder.

[0013] In a preferred embodiment of the utility model, the tearing mechanism includes a cutting saw, a pinion, a transmission chain and a large gear. The large gear is fixedly mounted on the surface of the main drive shaft of the bag breaking conveyor device, the pinion is rotatably connected to the inside of the lower leakage trough, the large gear is connected to the pinion through a transmission chain, and a cutting saw is fixedly connected to one side of the pinion, and the top of the cutting saw exceeds the top surface of the conveyor belt.

[0014] In a preferred embodiment of the utility model, the bag folding guide block is composed of a lifting slope, a transition slope and a folding slope along the transmission direction, the angles between the lifting slope, the transition slope and the folding slope and the horizontal plane gradually increase, the angle between the folding slope and the horizontal plane does not exceed ninety degrees, and the surface of the folding slope is provided with multiple material shaking ridges equidistantly arranged along the transmission direction.

[0015] In a preferred embodiment of the present utility model, the bag recycling device includes a bidirectional motor, a recycling rod, and two synchronous pulleys. The two synchronous pulleys are vertically and bearing-connected to one side inside the housing. The two synchronous pulleys are connected by a synchronous belt in a transmission manner. The shaft head of one of the synchronous pulleys is fixedly installed with the output shaft of the bidirectional motor. The bidirectional motor is fixedly installed on the inner wall of the housing. A clamping seat is arranged at the tail end of the recycling rod. The clamping seat is clamped and fixed to the synchronous belt and is slidably connected to the inner wall of the housing. The front end of the recycling rod extends into the lower leakage groove, and the material bag falls on the recycling rod.

[0016] In a preferred embodiment of the present utility model, the bag recycling guide plate includes a guide inclined plate. One side of the guide inclined plate is fixedly installed on the inner wall of the housing. A one-way door that can only be opened upward is installed through a spring hinge at the hollow part in the middle of the guide inclined plate. The width of the middle gap of the one-way door matches the rod diameter of the recycling rod. The one-way door has two door leaves, and guide protrusions are arranged at the door leaves close to the middle seam.

[0017] In a preferred embodiment of the present utility model, a spray dust suppression device is arranged at the center of the bottom of the recycling cover, and a waste water pipe is arranged at the bottom of the recycling box.

[0018] In a preferred embodiment of the present utility model, further, the bottom of the housing is in a hopper-shaped structure, and the side of the bottom far away from the screw conveyor slopes upward.

[0019] The beneficial effects of the present utility model are as follows:

[0020] By setting a bag breaker in this system, the functions of automatically feeding the whole bag of powder materials, quantitatively feeding after moving and breaking the bag are realized, effectively solving a series of problems in the prior art, such as powder metering can only be in bags, which restricts the formulation design; bag breaking, handling, and adding all need to be completed manually, and powder dust escaping and being inhaled will cause discomfort reactions; the liquid dosage needs to be manually measured and added separately, and there are losses and wastes during the weighing process; the configuration process requires personnel to pay attention throughout the process, and the intelligent level is insufficient. Description of the Drawings

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole bag breaker;

[0022] Figure 2 It is a schematic three-dimensional structure diagram of the fully-sectioned bag breaker;

[0023] Figure 3 It is a schematic three-dimensional structure diagram of the bag-breaking conveying device;

[0024] Figure 4 It is a schematic three-dimensional structure diagram of the bag folding guide block;

[0025] Figure 5 is Figure 2 Schematic enlarged structure diagram at A;

[0026] Figure 6 Schematic three-dimensional structure diagram of the bag recycling device;

[0027] Figure 7 Schematic layout structure diagram of the present reduction compounding system.

[0028] Reference numerals in the drawings; wherein, 1, bag breaker; 11, housing; 2, recycling bin; 21, recycling cover; 3, bag feeding bin; 31, top cover; 4, screw conveyor; 5, bagged powder; 6, bag breaking conveyor device; 61, bag folding guide block; 611, lifting slope; 612, transition slope; 613, folding slope; 614, vibrating material rib; 62, pushing plate; 63, bag cutting mechanism; 631, cutting saw; 632, pinion gear; 633, transmission chain; 634, large gear; 64, lower leakage trough; 7, recycling conveyor device; 8, bag recycling device; 81, bidirectional motor; 82, synchronous belt; 83, clamping seat; 84, synchronous pulley; 85, recycling rod; 9, bag recycling guide plate; 91, guide inclined plate; 92, spring hinge; 93, guide protrusion; 94, one-way door; 01, water reducer mixing tank body; 02, slump retaining mother liquor tank; 03, liquid material waiting bin; 04, powder material waiting bin; 05, water tank; 06, intelligent three-way valve; 07, water reducer mother liquor tank. Detailed implementation manners

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawing structures is only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be noted here that the description of these embodiment modes is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0030] Embodiment:

[0031] Such as Figures 1-7As shown, this embodiment provides an automatic bag unpacking and water reduction compounding system, including bagged powder 5, a water reducer mixing tank body 01, a grinding and collapsing mother liquid tank 02, a water reduction mother liquid tank 07, a water tank 05, and also includes a bag breaker 1, the grinding and collapsing mother liquid tank 02 and the water reduction mother liquid tank 07 are respectively connected to two liquid waiting bins 03 through pipelines, and an auger conveyor 4 is fixedly installed at the output end of the bag breaker 1. The auger conveyor 4 is connected to the main pipe of the intelligent three-way valve 06 through a pipeline, and the two branches of the intelligent three-way valve 06 are respectively connected to two powder waiting bins 04, and the two liquid waiting bins 03 and the two powder waiting bins 04 are connected to the water reducer mixing tank body 01 through a pipeline, and the water tank 05 is connected to the water reducer mixing tank body 01 through a pipeline;

[0032] The bag breaking machine 1 includes a shell 11, a bag breaking conveyor 6 is fixedly installed at the bottom of the inner wall of the shell 11, a bag feeding box 3 is arranged above the input end of the bag breaking conveyor 6, the bag feeding box 3 is fixedly installed with the shell 11, a feed port of the bag feeding box 3 passes through the top of the shell 11 and is installed with a top cover 31, a plurality of bagged powders 5 are stacked vertically inside the bag feeding box 3, the bag breaking conveyor 6 cuts the bagged powders 5, and the powders inside fall to the bottom of the shell 11, a bag recovery device 8 is arranged inside the shell 11 at the output end corresponding to the bag breaking conveyor 6, the bag of the bagged powder 5 is lifted to the bag recovery guide plate 9 by the bag recovery device 8, the bag slides to the input end of the recovery conveyor 7 through the bag recovery guide plate 9, the output end of the recovery conveyor extends into the recovery box 2, the recovery box 2 is fixedly installed on the top of the shell 11, and its top extends out of the top of the shell 11 and is provided with a recovery cover 21.

[0033] Specifically, Figures 1-2 As shown, the system realizes the function of automatic powder loading in whole bags and quantitative feeding after the bag is broken by moving through the bag, which effectively solves the problems in the prior art that powder measurement can only be done in bags, which limits the formula design; bag breaking, transportation and adding all need to be done manually, and powder escaping and inhalation will cause discomfort; the amount of liquid needs to be measured manually and then added, and there is loss and waste in the weighing process; the configuration process requires the full attention of personnel, and the level of intelligence is insufficient.

[0034] Among them, after the whole bag of bagged powder 5 is pre-stored in the bag feeding box 3 for vertical stacking, it is sent into the shell 11 one by one through the bag breaking conveyor 6, and the bagged powder 5 is cut by the cutting mechanism 63 and then the material is taken out. The powder slides to the bottom of the shell 11 and is output through the auger conveyor 4. The packaging bag is collected by the bag recovery device 8 and lifted upward to the bag recovery guide plate 9 where it is intercepted, and is sent to the recovery box 2 for temporary storage through the recovery conveyor device 7, and finally is uniformly recovered and processed by the staff.

[0035] In a preferred embodiment of the utility model, further, a lower leakage groove 64 is arranged in the middle of the bag breaking conveyor 6 along the transmission direction, and a tearing mechanism 63 is arranged in the lower leakage groove 64 near the input end, and a plurality of push plates 62 are arranged equidistantly on the conveyor belt surface of the bag conveyor along the transmission direction, and the bagged powder 5 is arranged on the top of the conveyor belt and between two adjacent push plates 62, and two bag folding guide blocks 61 are arranged on both sides of the top of the bag breaking conveyor 6 and near the output end, and the two bag folding guide blocks 61 are arranged symmetrically, and the bagged powder 5 is folded upward through the two bag folding guide blocks 61 to pour the powder.

[0036] In a preferred embodiment of the utility model, further, the cutting mechanism 63 includes a cutting saw 631, a small gear 632, a transmission chain 633 and a large gear 634. The large gear 634 is fixedly mounted on the surface of the main driving shaft of the bag breaking conveyor 6, and the small gear 632 is rotatably connected to the inside of the lower leakage groove 64. The large gear 634 is connected to the small gear 632 through the transmission chain 633. The cutting saw 631 is fixedly connected to one side of the small gear 632, and the top of the cutting saw 631 exceeds the top surface of the conveyor belt.

[0037] In a preferred embodiment of the utility model, further, the bag folding guide block 61 is composed of a lifting slope 611, a transition slope 612 and a folding slope 613 along the transmission direction, the angles between the lifting slope 611, the transition slope 612 and the folding slope 613 and the horizontal plane gradually increase, the angle between the folding slope 613 and the horizontal plane does not exceed ninety degrees, and the surface of the folding slope 613 is provided with multiple material shaking ridges 614 equidistantly along the transmission direction.

[0038] Specifically, Figures 3-4 As shown, a plurality of push plates 62 are equidistantly arranged on the conveyor belt surface of the bag breaking conveyor 6 to push the bagged powder 5 forward, and then the bottom of the bag is cut by the cutting mechanism 63 to allow the powder to leak out and enter the housing 11;

[0039] At the same time, in order to prevent the powder from being retained in the bag and unable to be taken out, a group of two bag folding guide blocks 61 are symmetrically arranged on both sides of the bag breaking conveyor 6 to help the bag to fold upward, forcing all the powder to be dumped out cleanly, and the two sides of the bag are slightly lifted by setting a lifting slope 611 with a gentle slope, and then the two ends of the bag are further lifted by a transition slope 612 with an increased angle, and at the same time, preparation is made for folding it into a vertical state. After passing through the transition slope 612, the two ends of the bag are folded upward under the guidance of a folding slope 613 that is basically perpendicular to the horizontal plane, so that all the powder is poured out. During this period, the bag is shaken by a number of shaking ridges 614 arranged on the surface of the folding slope 613 to improve the efficiency of the powder falling, so that the powder can be completely taken out and the powder can be prevented from remaining in the bag and causing waste.

[0040] In a preferred embodiment of the present utility model, further, the bag recycling device 8 includes a bidirectional motor 81, a recycling rod 85, and two synchronous pulleys 84. The two synchronous pulleys 84 are vertically and bearings-connected to one side inside the outer shell 11. The two synchronous pulleys 84 are drivingly connected by a synchronous belt 82. The shaft head of one of the synchronous pulleys 84 is fixedly installed with the output shaft of the bidirectional motor 81. The bidirectional motor 81 is fixedly installed on the inner wall of the outer shell 11. A clamping seat 83 is provided at the tail end of the recycling rod 85. The clamping seat 83 is clamped and fixed to the synchronous belt 82 and is slidably connected to the inner wall of the outer shell 11. The front end of the recycling rod 85 extends into the lower leakage groove 64. The material bag falls on the recycling rod 85.

[0041] In a preferred embodiment of the present utility model, further, the bag recycling guide plate 9 includes a guide inclined plate 91. One side of the guide inclined plate 91 is fixedly installed on the inner wall of the outer shell 11. A one-way door 94 that can only open upward is installed through a spring hinge 92 at the hollow part in the middle of the guide inclined plate 91. The width of the middle gap of the one-way door 94 matches the rod diameter of the recycling rod 85. The one-way door 94 has two door leaves. Guide protrusions 93 are provided at the door leaves near the middle seam.

[0042] In a preferred embodiment of the present utility model, further, a spray dust reduction device is provided at the center of the bottom of the recycling cover 21. A waste water pipe is provided at the bottom of the recycling box 2.

[0043] Specifically, as Figures 5-6 shown, by driving the position of the synchronous belt 82 through the bidirectional motor 81, the lifting movement of the recycling rod 85 can be realized, so as to realize the lifting of the recycling rod 85 carrying the empty material bag and smoothly pass through the one-way door 94 of the bag recycling guide plate 9. Subsequently, by lowering the recycling rod 85, it can smoothly pass through the middle seam of the one-way door 94. The edge of the empty material bag will be blocked by the door leaf of the one-way door 94 under the action of the conical guide protrusion 93, so as to be separated from the recycling rod 85 and slide along the guide inclined plate 91 to the recycling conveyor 7 by its own weight and finally be conveyed into the recycling box 2 for temporary storage;

[0044] Moreover, to prevent dust from being generated during the recycling of the material bag, which may harm the staff and pollute the environment, when the material bags need to be centrally recycled, the material bags are wetted in advance by the spray device and then processed to effectively solve the above problems.

[0045] In a preferred embodiment of the present utility model, further, the bottom of the outer shell 11 is in a hopper-shaped structure, and the side of the bottom away from the auger conveyor 4 slopes upward.

[0046] This water-reducing compounding system includes a raw material adding subsystem, a water-reducing agent mixing subsystem, and an intelligent control subsystem. The systems are connected by pipelines and intelligent valves. The raw material adding subsystem includes a powder additive device, a liquid additive device, and a mother liquor adding device. The powder additive device includes a bag breaker 1, a screw conveyor 4, a closed powder waiting bin 04, a weighing scale, a pressure sensor, etc.

[0047] The liquid additive device includes a closed liquid waiting bin 03 and a metering system.

[0048] The mother liquor adding device includes a water-reducing agent mother liquor tank 07 and a booster pump.

[0049] The water-reducing agent mixing subsystem includes a small platform scale, a water-reducing agent mixing tank body 01, a stirring motor, and a stirring arm; the water-reducing agent mixing tank body 01 is provided with a raw material adding port and a sampling port.

[0050] The intelligent control subsystem includes a wireless communication module, an electric control system, and a monitoring system.

[0051] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic bag unpacking and water reduction compounding system, comprising bagged powder (5), a water reducer mixing tank (01), a grinding and collapsing mother liquid tank (02), a water reduction mother liquid tank (07), and a water tank (05), characterized in that: It also includes a bag breaker (1), wherein the grinding mother liquid tank (02) and the water reduction mother liquid tank (07) are respectively connected to two liquid waiting bins (03) through pipelines, and an auger conveyor (4) is fixedly installed at the output end of the bag breaker (1), and the auger conveyor (4) is connected to the main pipe of the intelligent three-way valve (06) through a pipeline, and the two branches of the intelligent three-way valve (06) are respectively connected to two powder waiting bins (04), and the two liquid waiting bins (03) and the two powder waiting bins (04) are both connected to the water reducer mixing tank body (01) through pipelines, and the water tank (05) is connected to the water reducer mixing tank body (01) through a pipeline; The bag breaking machine (1) comprises a shell (11), a bag breaking conveying device (6) is fixedly installed at the bottom of the inner wall of the shell (11), a bag feeding box (3) is arranged above the input end of the bag breaking conveying device (6), the bag feeding box (3) is fixedly installed with the shell (11), a top cover (31) is installed at the top of the shell (11) through which the feeding port of the bag feeding box (3) passes, a plurality of bagged powder materials (5) are stacked vertically inside the bag feeding box (3), the bag breaking conveying device (6) cuts the bagged powder materials (5), and the powder materials inside fall onto the outer wall. The bottom of the shell (11) is provided with a bag recovery device (8) inside the shell (11) corresponding to the output end of the bag breaking conveying device (6); the bag of the bagged powder (5) is lifted to the bag recovery guide plate (9) by the bag recovery device (8); the bag slides to the input end of the recovery conveying device (7) through the bag recovery guide plate (9); the output end of the recovery conveying device extends into the interior of the recovery box (2); the recovery box (2) is fixedly installed on the top of the shell (11); its top extends out of the top of the shell (11); and a recovery cover (21) is provided.

2. The automatic bag unpacking and water reduction compounding system according to claim 1 is characterized by: A lower leakage groove (64) is arranged in the middle of the bag breaking conveying device (6) along the transmission direction, and a tearing mechanism (63) is arranged in the lower leakage groove (64) near the input end. A plurality of pushing plates (62) are arranged equidistantly on the conveyor belt surface of the bag conveying device along the transmission direction. The bagged powder (5) is arranged on the top of the conveyor belt and between two adjacent pushing plates (62). Two bag folding guide blocks (61) are arranged on both sides of the top of the bag breaking conveying device (6) and near the output end. The two bag folding guide blocks (61) are arranged symmetrically, and the bagged powder (5) is folded upward and poured out through the two bag folding guide blocks (61).

3. The automatic bag unpacking and water reduction compounding system according to claim 2 is characterized by: The tearing mechanism (63) comprises a cutting saw (631), a small gear (632), a transmission chain (633) and a large gear (634); the large gear (634) is fixedly mounted on the surface of the main driving shaft of the bag breaking conveying device (6); the small gear (632) is rotatably connected to the inside of the lower leakage groove (64); the large gear (634) is transmission-connected to the small gear (632) via a transmission chain (633); one side of the small gear (632) is fixedly connected to the cutting saw (631); the top of the cutting saw (631) exceeds the top surface of the conveyor belt.

4. The automatic bag unpacking and water reduction compounding system according to claim 3 is characterized by: The bag folding guide block (61) is composed of a lifting slope (611), a transition slope (612) and a folding slope (613) along the transmission direction. The angles between the lifting slope (611), the transition slope (612) and the folding slope (613) and the horizontal plane gradually increase. The angle between the folding slope (613) and the horizontal plane does not exceed ninety degrees. The surface of the folding slope (613) is provided with a plurality of material shaking ridges (614) equidistantly along the transmission direction.

5. The automatic bag unpacking and water reduction compounding system according to claim 3 is characterized by: The bag recovery device (8) comprises a bidirectional motor (81), a recovery rod (85) and two synchronous wheels (84), wherein the two synchronous wheels (84) are connected to one side of the inner part of the outer shell (11) along a vertical bearing, and the two synchronous wheels (84) are connected by a synchronous belt (82). The shaft head of one of the synchronous wheels (84) is fixedly mounted on the output shaft of the bidirectional motor (81), and the bidirectional motor (81) is fixedly mounted on the inner wall of the outer shell (11). A clamping seat (83) is provided at the tail end of the recovery rod (85), and the clamping seat (83) is clamped and fixed with the synchronous belt (82) and is slidably connected to the inner wall of the outer shell (11). The front end of the recovery rod (85) extends into the lower leakage groove (64), and the material bag falls on the recovery rod (85).

6. The automatic bag unpacking and water reduction compounding system according to claim 5 is characterized by: The bag recovery guide plate (9) comprises a guide inclined plate (91), one side of which is fixedly mounted on the inner wall of the housing (11), a one-way door (94) which can only be opened upwards is mounted at a hollow portion in the middle of the guide inclined plate (91) via a spring hinge (92), the width of a central gap of the one-way door (94) matches the rod diameter of the recovery rod (85), the one-way door (94) has two door leaves, and a guide protrusion (93) is arranged on the door leaves near the central gap.

7. The automatic bag unpacking and water reduction compounding system according to claim 1 is characterized by: A spray dust reduction device is provided at the center of the bottom of the recovery cover (21), and a waste water pipe is provided at the bottom of the recovery box (2).

8. The automatic bag unpacking and water reduction compounding system according to claim 1 is characterized by: The bottom of the shell (11) is in a bucket-shaped structure, and the side of the bottom away from the auger conveyor (4) is inclined upward.

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