Water removal and material return device for stock bin

Abstract

The utility model provides a stock bin dewatering and returning device which comprises a machine frame, a granulator and a hopper, the granulator is fixed on the machine frame, the hopper is located below the machine frame, a discharging port of the granulator penetrates through the machine frame and is communicated with a feeding port of the hopper, and a connecting pipe communicated with an inner cavity of the hopper is arranged on the upper side edge of the outer wall of the hopper. The end, away from the hopper, of the connecting pipe is communicated with an air inlet of an air pump, an air outlet of the air pump is communicated with a degassing pipe for collecting high-temperature steam, and a collecting assembly for collecting powdery materials moved out along with the steam is arranged on the connecting pipe. Steam discharged along with finished products can also enter the hopper, power is provided through the air pump, the steam in the hopper enters the connecting pipe and is discharged through the degassing pipe, the possibility that the powdery materials move along with the steam is reduced through the collecting assembly, cost is reduced, and recycling of the powdery materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of silo dewatering and material returning technology, in particular to a silo dewatering and material returning device. Background Art

[0002] Feed pelletizers are feed pelletizing equipment. They are feed processing machines that directly compress crushed materials such as corn, soybean meal, straw, grass, and rice husks into pellets. They can efficiently compress various raw materials into pelleted feed, making it easier to store and transport, while also improving the nutritional value and palatability of the feed.

[0003] During the feed pelleting process, steam needs to be added to complete the conditioning process. The temperature of the steam is relatively high, and the temperature of the material is increased to a certain extent when it contacts the material. The material after the temperature is increased is easier to form when it passes through the mold of the pelleting chamber. After high-temperature sterilization, the bacteria rate of the feed pellets is low, and the animals will not get sick after eating them and they are easy to digest. In addition, the steam will cool down after contacting the powder and moisten the surface of the material. In the process of making pellets with the pellet feed processing machine, the output is increased and the pellets are full and beautiful.

[0004] However, in the actual production process of the feed pelletizer, if the moisture content of the material is too high, it will make it difficult for the material to settle in the machine, the adhesion will be reduced, and a large amount of steam will be generated. The feeding auger feeds slowly, which will cause the material to be pressed in the pelletizing chamber for a longer time, which will cause most of the water in the material to evaporate, resulting in excessive steam.

[0005] Steam will enter the silo along with the finished feed. However, excessive steam will cause the finished material to clump and stick to the silo, affecting the quality of the finished material. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the utility model proposes a silo dewatering and material return device, which includes a frame, a granulator and a hopper. The granulator is fixed on the frame, and the hopper is located below the frame. The discharge port of the granulator passes through the frame and is connected with the feed port of the hopper. A connecting pipe connected to the inner cavity of the hopper is provided on the upper side of the outer wall of the hopper. The end of the connecting pipe away from the hopper is connected to the air inlet of the air pump, and the air outlet of the air pump is connected to a degassing pipe for collecting high-temperature steam. A collection component for collecting powdered materials removed with the steam is provided on the connecting pipe.

[0007] To achieve the above purpose, the finished products produced by the granulator fall directly into the hopper and are collected by the hopper. The steam discharged with the finished products also enters the hopper. The air pump provides power, and the steam in the hopper enters the connecting pipe and is discharged through the degassing pipe. The collection component reduces the possibility of powdered materials moving with the steam, reduces costs, and facilitates the recycling of powdered materials.

[0008] Furthermore, the connecting pipe is composed of an air outlet pipe and an air inlet pipe, one end of the air outlet pipe penetrates into the inner cavity of the hopper and is fixed to the inner cavity of the hopper, the air outlet pipe and the inner cavity of the hopper are communicated with each other, and the end of the air inlet pipe away from the air outlet pipe is communicated with the air inlet of the air pump, and the collecting assembly includes an upper sleeve box, a middle filter box and a lower collecting box arranged between the air outlet pipe and the air inlet pipe, the inner cavity of the upper sleeve box is hollow and opens toward one side of the middle filter box, the inner cavity of the middle filter box is hollow, and opens at the upper and lower ends, the inner cavity of the lower collecting box is hollow and opens toward one side of the middle filter box, the end of the air outlet pipe away from the hopper is fixed to the upper sleeve box and communicated with the inner cavity of the upper sleeve box, and the end of the air inlet pipe away from the air pump is fixed to the middle filter box and communicated with the inner cavity of the middle fixed box.

[0009] Through the above technical solution, the steam in the hopper enters the upper sleeve box, is filtered by the middle filter box, and the powdered material falls into the lower collection box, and the steam is discharged from the air inlet pipe.

[0010] Furthermore, the top of the middle filter box extends into the upper sleeve box and is threadedly fixed to the upper sleeve box, and the bottom of the middle filter box extends into the lower collection box and is threadedly fixed to the lower collection box.

[0011] Through the above technical solution, the middle filter box, the upper sleeve box and the lower collection box are all threadedly connected, which facilitates the disassembly, installation and cleaning of the middle filter box, the upper sleeve box and the lower collection box.

[0012] Furthermore, an upper partition is fixed to the inner cavity of the upper box, and a tubular filter is integrated in the middle position of the upper partition. The upper partition closes the gap between the upper box and the tubular filter, and the tubular filter extends out of the upper box. The part of the tubular filter extending out of the upper box enters the middle filter box, and the bottom end of the tubular filter entering the middle filter box is integrated with a material guide pipe, which passes through the middle filter box and extends into the lower collection box. The inner cavity groove wall of the middle filter box is fixed with a lower partition fixed to the bottom end of the tubular filter and supporting the tubular filter. The lower partition closes the gap between the middle collection box and the tubular filter, the upper partition is located below the outlet pipe, and the lower partition is located below the inlet pipe.

[0013] Through the above technical solution, the steam in the outlet pipe and the powdered material it carries enter the upper sleeve box. Since the upper partition closes the gap between the inner cavity of the upper sleeve box and the tubular filter, the steam and powdered material can only enter the tubular filter. The steam passes through the tubular filter and enters the air inlet pipe. The powdered material enters the lower collection box under the action of gravity and is collected by the lower collection box.

[0014] Furthermore, a connecting assembly is provided outside the middle filter box for conveniently supporting and fixing the middle fixing box and the frame.

[0015] Through the above technical solution, by providing a connection assembly, the middle filter box is fixed to the frame, thereby improving the stability of the connection.

[0016] Furthermore, the connecting assembly includes an annular plate fixedly connected to the circumferential outer wall of the middle filter box, a connecting sleeve is provided on the outer sleeve of the annular plate, the inner diameter of the connecting sleeve is slightly larger than the outer diameter of the annular plate, and a circular groove with a diameter smaller than the outer diameter of the annular plate and slightly larger than the outer diameter of the middle filter box is provided at the bottom of the connecting sleeve, a mounting plate is fixed to the upper surface of the connecting sleeve by a number of evenly arranged connecting ropes, a connecting column is fixed to the side of the mounting plate away from the connecting rope, a fixing plate is integrated with the end of the connecting column away from the mounting plate, and the fixing plate is fixed to the frame by screws.

[0017] Through the above technical solution, the integrated connecting rope, connecting sleeve and annular plate cooperate to hold the middle filter box. The connecting rope, mounting plate, connecting column and fixing plate are integrated into the structure and are detachably fixed to the frame by screws, which facilitates the disassembly and assembly of the connecting sleeve and the middle filter box.

[0018] Furthermore, an upper guide plate for guiding the finished material is fixed to the inner groove wall of the hopper, and a lower guide plate located below the upper guide plate is also fixed to the inner groove wall of the hopper. The cross-sections of the upper guide plate and the lower guide plate are both arc-shaped. The lower guide plate is arranged opposite to the upper guide plate and the lower guide plate is located inside the upper guide plate away from the hopper. The part of the air outlet pipe extending into the hopper is located between the upper guide plate and the lower guide plate.

[0019] Through the above technical solution, by setting up the upper guide plate and the lower guide plate, the finished material does not come into contact with the air outlet pipe under the action of the upper guide plate and directly falls into the inner cavity of the hopper, reducing the possibility of the finished material entering the air outlet pipe. The lower guide plate is used to block it, further reducing the possibility of powdered material entering the air outlet pipe with the steam. After moving up with the steam, the powdered material will collide with the lower guide plate and fall back into the hopper.

[0020] In summary, the silo dewatering and material return device has the following beneficial effects:

[0021] (1) The silo dewatering and material return device is a device in which the finished products produced by the granulator fall directly into the hopper and are collected by the hopper. The steam discharged with the finished products also enters the hopper. The steam in the hopper enters the connecting pipe and is discharged through the degassing pipe through the air pump. The possibility of the powdered material moving with the steam is reduced by the collection component, which reduces the cost and facilitates the recycling of the powdered material.

[0022] (2) The silo dewatering and material return device is provided with an upper guide plate and a lower guide plate. The finished material does not come into contact with the air outlet pipe under the action of the upper guide plate and directly falls into the inner cavity of the hopper, thereby reducing the possibility of the finished material entering the air outlet pipe. The lower guide plate blocks it, further reducing the possibility of powdered material entering the air outlet pipe along with the steam. After the powdered material moves upward with the steam, it will hit the lower guide plate and fall back into the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described and elaborated below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the preferred embodiment of the utility model;

[0025] Figure 2 This utility model Figure 1 A in the middle is an enlarged structural diagram;

[0026] Figure 3 This is a schematic diagram of the structure of the annular plate of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the middle filter box of the utility model;

[0028] Figure 5 This is a partial cross-sectional structural diagram of the hopper of the present utility model;

[0029] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B in the middle.

[0030] Figure markings: 1. Frame; 2. Granulator; 3. Hopper; 4. Connecting pipe; 401. Exhaust pipe; 402. Inlet pipe; 5. Air pump; 6. Degassing pipe; 7. Collecting assembly; 701. Upper sleeve box; 702. Middle filter box; 703. Lower collecting box; 704. Upper partition; 705. Tubular filter screen; 706. Material guide pipe; 707. Lower partition; 8. Connecting assembly; 801. Annular plate; 802. Connecting sleeve; 803. Circular groove; 804. Connecting rope; 805. Mounting plate; 806. Fixing plate; 9. Upper guide plate; 10. Lower guide plate. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be more clearly and completely explained below by describing the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0032] like Figure 1-6As shown, a silo dewatering and material returning device according to the preferred embodiment of the present invention comprises a frame 1, a granulator 2 is fixed on the frame 1, a hopper 3 is fixed below the frame 1, and the hopper 3 is located directly below the granulator 2. The discharge pipe of the granulator 2 passes through the frame 1 and is connected with the feed port of the hopper 3. The finished product output by the granulator 2 falls directly into the hopper 3 and is collected by the hopper 3. The steam and powdered material discharged with the finished product will also enter the hopper 3.

[0033] like Figure 1 In order to reduce the possibility of steam staying in the hopper 3 for a long time and affecting the finished materials, a connecting pipe 4 communicating with the inner cavity of the hopper 3 is provided on the upper side of the outer wall of the hopper 3. The end of the connecting pipe 4 away from the hopper 3 is connected to the air inlet of the air pump 5, and the air outlet of the air pump 5 is connected to the degassing pipe 6 for collecting high-temperature steam. The air pump 5 provides power, and the steam in the hopper 3 enters the connecting pipe 4 and is discharged through the degassing pipe 6.

[0034] like Figure 1 and Figure 2 and Figure 3 The connecting pipe 4 is composed of an air outlet pipe 401 and an air inlet pipe 402. One end of the air outlet pipe 401 penetrates into the inner cavity of the hopper 3 and is fixed to the inner cavity of the hopper 3. The air outlet pipe 401 and the inner cavity of the hopper 3 are communicated with each other. The end of the air inlet pipe 402 away from the air outlet pipe 401 is communicated with the air inlet of the air pump 5. In order to reduce the possibility of waste caused by the discharge of powdered material along with the steam, a collection component 7 for collecting the powdered material removed along with the steam is provided between the air outlet pipe 401 and the air inlet pipe 402 to reduce costs and facilitate the recycling of powdered materials.

[0035] like Figure 2 and Figure 3 and Figure 4 The collecting assembly 7 includes an upper sleeve 701, a middle filter box 702 and a lower collecting box 703 arranged between the outlet pipe 401 and the inlet pipe 402. The inner cavity of the upper sleeve 701 is hollow and opens toward one side of the middle filter box 702. The inner cavity of the middle filter box 702 is hollow and opens at both ends. The inner cavity of the lower collecting box 703 is hollow and opens toward one side of the middle filter box 702. The end of the outlet pipe 401 away from the hopper 3 is fixed to the upper sleeve 701 and communicates with the inner cavity of the upper sleeve 701. The inlet pipe 4 02 is fixed to the middle filter box 702 at one end away from the air pump 5 and is connected to the inner cavity of the middle fixed box. The top of the middle filter box 702 extends into the upper sleeve box 701 and is threadedly fixed to the upper sleeve box 701. The bottom of the middle filter box 702 extends into the lower collection box 703 and is threadedly fixed to the lower collection box 703. The middle filter box 702, the upper sleeve box 701 and the lower collection box 703 are all threadedly connected, which is convenient for disassembly, installation and cleaning of the middle filter box 702, the upper sleeve box 701 and the lower collection box 703.

[0036] like Figure 2 and Figure 3 and Figure 4 The upper spacer 704 is fixed to the inner cavity of the upper box 701, and a tubular filter screen 705 is integrated in the middle position of the upper spacer 704. The upper spacer 704 closes the gap between the upper box 701 and the tubular filter screen 705. The tubular filter screen 705 extends out of the upper box 701. The part of the tubular filter screen 705 extending out of the upper box 701 enters the middle filter box 702. The tubular filter screen 705 enters the bottom end of the middle filter box 702 and is integrated. There is a material guide pipe 706, which passes through the middle filter box 702 and extends into the lower collection box 703. The inner groove wall of the middle filter box 702 is fixed with a lower partition 707 that is fixed to the bottom end of the tubular filter screen 705 and supports the tubular filter screen 705. The lower partition 707 closes the gap between the middle collection box and the tubular filter screen 705. The upper partition 704 is located below the outlet pipe 401, and the lower partition 707 is located below the inlet pipe 402.

[0037] like Figure 2 and Figure 3 and Figure 4 The steam in the outlet pipe 401 and the powdered material it carries enter the upper sleeve 701. Since the upper partition 704 closes the gap between the inner cavity of the upper sleeve 701 and the tubular filter 705, the steam and powdered material can only enter the tubular filter 705. The steam passes through the tubular filter 705 and enters the air inlet pipe 402. The powdered material enters the lower collection box 703 under the action of gravity and is collected by the lower collection box 703.

[0038] like Figure 2 and Figure 3 In order to improve the stability of the middle filter box 702, the middle filter box 702 is provided with a connecting component 8 for conveniently supporting and fixing the middle fixing box and the frame 1. The connecting component 8 includes an annular plate 801 fixedly connected to the outer wall of the circumference of the middle filter box 702, and the outer sleeve of the annular plate 801 is provided with a connecting sleeve 802 that cooperates with the annular plate 801. The inner diameter of the connecting sleeve 802 is slightly larger than the outer diameter of the annular plate 801, and a circular groove 803 with a diameter smaller than the outer diameter of the annular plate 801 and slightly larger than the outer diameter of the middle filter box 702 is provided at the bottom of the connecting sleeve 802. The upper surface of the connecting sleeve 802 is fixed with a mounting plate 805 through several evenly arranged connecting ropes 804. A connecting column is fixed to the side of the mounting plate 805 away from the connecting rope 804, and a fixing plate 806 is integrated with the end of the connecting column away from the mounting plate 805, and the fixing plate 806 is fixed to the frame 1 by screws.

[0039] like Figure 2 and Figure 3The integrated connecting rope 804, connecting sleeve 802 and annular plate 801 cooperate to hold the middle filter box 702. The connecting rope 804, mounting plate 805, connecting column and fixing plate 806 are integrated into the structure and are detachably fixed to the frame 1 by screws, which facilitates the disassembly and assembly of the connecting sleeve 802 and the middle filter box 702.

[0040] like Figure 5 and Figure 6 In order to further reduce the possibility of powdered materials being discharged along with the steam, an upper guide plate 9 for guiding the finished materials is fixed to the inner groove wall of the hopper 3. A lower guide plate 10 located below the upper guide plate 9 is also fixed to the inner groove wall of the hopper 3. The cross-sections of the upper guide plate 9 and the lower guide plate 10 are both arc-shaped. The lower guide plate 10 is arranged opposite to the upper guide plate 9 and the side of the lower guide plate 10 away from the hopper 3 is located inside the upper guide plate 9. The part of the air outlet pipe 401 extending into the hopper 3 is located between the upper guide plate 9 and the lower guide plate 10.

[0041] like Figure 5 and Figure 6 By setting the upper guide plate 9 and the lower guide plate 10, the finished material does not come into contact with the outlet pipe 401 under the action of the upper guide plate 9 and directly falls into the inner cavity of the hopper 3, reducing the possibility of the finished material entering the outlet pipe 401. The lower guide plate 10 blocks it, further reducing the possibility of powdered material entering the outlet pipe 401 along with the steam. After moving up with the steam, the powdered material will collide with the lower guide plate 10 and fall back into the hopper 3.

[0042] When in use, turn on the power and turn on the switch. The finished material produced by the granulator 2 will fall directly into the hopper 3. Under the action of the upper guide plate 9, the finished material will not contact the air outlet pipe 401 and will fall directly into the inner cavity of the hopper 3, reducing the possibility of the finished material entering the air outlet pipe 401. Since the granulator 2 has good sealing performance, the steam in the granulator 2 and some powdered materials will enter the hopper 3 along with the finished material. Turn on the air pump 5 and use the air pump 5 to provide power to drive the steam in the hopper 3 into the air outlet pipe 401. When the powdered material moves with the steam, most of the powdered material will hit the lower guide plate 10 and fall back into the hopper 3, reducing the possibility of some powdered materials moving with the steam and increasing the cost.

[0043] However, some powdered materials still enter the outlet pipe 401 along with the steam, and then the powdered materials follow the steam into the inner cavity of the upper sleeve box 701 along the flow direction. Since the upper partition 704 closes the gap between the upper sleeve box 701 and the tubular filter 705, and the tubular filter 705 is connected to the upper sleeve box 701, the middle filter box 702 and the lower collection box 703, the powdered materials can only enter the tubular filter 705 along with the steam, and are filtered by the tubular filter 705. The lower partition 707 closes the gap between the middle filter box 702 and the tubular filter 705, and the steam can only pass through the tubular filter 705 and enter the air inlet pipe 402. The powdered materials are intercepted by the tubular filter 705 and can only fall into the lower collection box 703 under the action of gravity, and the lower collection box 703 collects the powdered materials.

[0044] After using it for a period of time, the staff manually rotates the lower collecting box 703, and the lower collecting box 703 is disconnected from the middle filter box 702. The staff pours out and collects the powdered material in the lower collecting box 703, so that the powdered material is put back into the granulator 2, reducing costs, reducing waste, and improving work efficiency. The steam is discharged into the appropriate area through the degassing pipe 6 under the action of the air pump 5.

[0045] The above-described specific embodiments merely describe preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, substitutions, and improvements to the technical solution of the present invention made by a person of ordinary skill in the art based on the textual description and accompanying drawings provided herein, without departing from the design concept and spirit of the present invention, shall fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. A silo dewatering and material returning device, characterized in that: The invention comprises a frame (1), a granulator (2) and a hopper (3), wherein the granulator (2) is fixed on the frame (1), the hopper (3) is located below the frame (1), the discharge port of the granulator (2) passes through the frame (1) and is connected to the feed port of the hopper (3), the upper side of the outer wall of the hopper (3) is provided with a connecting pipe (4) connected to the inner cavity of the hopper (3), the end of the connecting pipe (4) away from the hopper (3) is connected to the air inlet of the air pump (5), the air outlet of the air pump (5) is connected to the degassing pipe (6) for collecting high-temperature steam, and the connecting pipe (4) is provided with a collecting component (7) for collecting powdered material removed with the steam.

2. A silo dewatering and material returning device according to claim 1, characterized in that: The connecting pipe (4) is composed of an air outlet pipe (401) and an air inlet pipe (402), one end of the air outlet pipe (401) penetrates into the inner cavity of the hopper (3) and is fixed to the inner cavity of the hopper (3), the air outlet pipe (401) and the inner cavity of the hopper (3) are in communication with each other, and the end of the air inlet pipe (402) away from the air outlet pipe (401) is in communication with the air inlet of the air pump (5); The collecting assembly (7) comprises an upper sleeve (701), a middle filter box (702), and a lower collecting box (703) arranged between the air outlet pipe (401) and the air inlet pipe (402); the inner cavity of the upper sleeve (701) is hollow and opens toward one side of the middle filter box (702); the inner cavity of the middle filter box (702) is hollow and opens at both upper and lower ends; the inner cavity of the lower collecting box (703) is hollow and opens toward one side of the middle filter box (702); the end of the air outlet pipe (401) away from the hopper (3) is fixed to the upper sleeve (701) and communicates with the inner cavity of the upper sleeve (701); the end of the air inlet pipe (402) away from the air pump (5) is fixed to the middle filter box (702) and communicates with the inner cavity of the middle fixed box.

3. A silo dewatering and material returning device according to claim 2, characterized in that: The top of the middle filter box (702) extends into the upper sleeve box (701) and is threadedly fixed to the upper sleeve box (701), and the bottom of the middle filter box (702) extends into the lower collection box (703) and is threadedly fixed to the lower collection box (703).

4. A silo dewatering and material returning device according to claim 2, characterized in that: An upper partition (704) is fixed to the inner cavity of the upper casing (701), and a tubular filter (705) is integrated in the middle position of the upper partition (704). The upper partition (704) closes the gap between the upper casing (701) and the tubular filter (705). The tubular filter (705) extends out of the upper casing (701). The part of the tubular filter (705) extending out of the upper casing (701) enters the middle filter box (702). The tubular filter (705) enters the bottom end of the middle filter box (702) and is integrated. There is a material guide pipe (706), which passes through the middle filter box (702) and extends into the lower collection box (703). The inner cavity wall of the middle filter box (702) is fixed with a lower partition (707) fixed to the bottom end of the tubular filter (705) and supporting the tubular filter (705). The lower partition (707) closes the gap between the middle collection box and the tubular filter (705). The upper partition (704) is located below the outlet pipe (401), and the lower partition (707) is located below the inlet pipe (402).

5. A silo dewatering and material returning device according to claim 2, characterized in that: The middle filter box (702) is provided with a connecting assembly (8) on the outside for conveniently supporting and fixing the middle fixing box and the frame (1).

6. A silo dewatering and material returning device according to claim 5, characterized in that: The connecting assembly (8) comprises an annular plate (801) fixedly connected to the circumferential outer wall of the middle filter box (702); a connecting sleeve (802) matching the annular plate (801) is provided on the outer shell of the annular plate (801); the inner diameter of the connecting sleeve (802) is slightly larger than the outer diameter of the annular plate (801); a circular groove (803) having a diameter smaller than the outer diameter of the annular plate (801) and slightly larger than the outer diameter of the middle filter box (702) is provided at the bottom of the connecting sleeve (802); a mounting plate (805) is fixed to the upper surface of the connecting sleeve (802) via a plurality of evenly arranged connecting ropes (804); a connecting column is fixed to the side of the mounting plate (805) facing away from the connecting ropes (804); and a fixing plate (806) is integrated with the end of the connecting column away from the mounting plate (805); the fixing plate (806) is fixed to the frame (1) via screws.

7. A silo dewatering and material returning device according to claim 2, characterized in that: An upper guide plate (9) for guiding the finished material is fixed to the inner groove wall of the hopper (3), and a lower guide plate (10) located below the upper guide plate (9) is also fixed to the inner groove wall of the hopper (3). The cross-sections of the upper guide plate (9) and the lower guide plate (10) are both arc-shaped. The lower guide plate (10) is arranged opposite to the upper guide plate (9), and the side of the lower guide plate (10) away from the hopper (3) is located inside the upper guide plate (9). The part of the air outlet pipe (401) extending into the hopper (3) is located between the upper guide plate (9) and the lower guide plate (10).

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