Special measuring sand hopper for preparing mortar from coal gangue

Abstract

The utility model belongs to the technical field of measuring sand hoppers, and particularly relates to a special measuring sand hopper for preparing mortar from coal gangue, which comprises a rack, a sand hopper main body and a pressure sensor are fixedly connected onto the rack, a feed port is arranged at the upper end of the sand hopper main body, a discharge port is arranged at the lower end of the sand hopper main body, and a butterfly valve is fixedly connected to the lower end of the sand hopper main body. The sand hopper main body comprises a cylindrical pipe body fixedly connected to the rack, the lower end of the cylindrical pipe body is fixedly connected with a conical pipe body, the inner wall of the sand hopper main body is detachably and fixedly connected with a wear-resistant rubber plate, and the peripheral side of the wear-resistant rubber plate is fixedly connected with a plurality of connecting parts in an annular array; a plurality of mounting grooves matched with the connecting parts are formed in the side wall of the sand hopper body, the width of the mounting grooves is larger than that of the connecting parts, and locking pieces located on the outer sides of the mounting grooves are fixedly connected to the outer side of the sand hopper body. The wear-resistant rubber plate can be simply replaced by the wear-resistant rubber plate replacement device.

Description

Technical Field

[0001] This utility model belongs to the field of metering sand hopper technology, specifically relating to a special metering sand hopper for preparing mortar from coal gangue. Background Technology

[0002] In the field of building material preparation, the use of coal gangue to prepare mortar is a common and significant process. As a solid waste generated during coal mining and washing, coal gangue can be effectively used to prepare mortar, which can not only solve the problems of coal gangue accumulation and environmental pollution, but also reduce the production cost of building materials and realize the recycling of resources.

[0003] However, in the process of preparing mortar from coal gangue, the metering hopper plays a crucial role. It is responsible for storing and accurately measuring the coal gangue sand to ensure the accurate proportions of various raw materials during mortar preparation, thereby guaranteeing the quality stability of the mortar.

[0004] Currently, when existing metering sand hoppers are used to prepare mortar from coal gangue, the needle-like and flaky characteristics of the coal gangue sand cause significant wear to the inner wall of the hopper. The inner wall of the hopper is constantly subjected to friction and impact from the coal gangue sand, making it prone to wear and damage, thus affecting the service life of the hopper. To reduce wear, some sand hoppers have wear-resistant rubber plates installed on their inner walls; however, the existing installation methods for these rubber plates are complex, and the replacement process is cumbersome. When the wear-resistant rubber plates wear out and need to be replaced, it often requires a significant amount of time and manpower. Utility Model Content

[0005] The purpose of this invention is to provide a special metering hopper for preparing mortar from coal gangue, which can easily replace the wear-resistant rubber plate.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A special metering hopper for preparing mortar from coal gangue includes a frame, on which a hopper body and a pressure sensor are fixedly connected. The upper end of the hopper body is provided with a feed inlet, the lower end of the hopper body is provided with a discharge outlet, and a butterfly valve is fixedly connected to the lower end of the hopper body.

[0008] The main body of the sand hopper includes a cylindrical tube fixedly connected to the frame, and a conical tube fixedly connected to the lower end of the cylindrical tube;

[0009] The inner wall of the sand hopper body is detachably fixedly connected with wear-resistant rubber plates, the circumferential side of the wear-resistant rubber plates is fixedly connected with a plurality of connecting parts arranged in an annular array, a plurality of mounting grooves matched with the connecting parts are formed in the side wall of the sand hopper body, the width of the mounting grooves is greater than that of the connecting parts, and the outer side of the sand hopper body is fixedly connected with locking pieces located outside the mounting grooves, which are used for locking the connecting parts mounted in the mounting grooves.

[0010] Further, the number of the butterfly valves is two, and the two butterfly valves are vertically overlapped.

[0011] Further, the included angle between the inner wall of the conical pipe body and the horizontal plane is 65°.

[0012] Further, the locking piece comprises additional shells fixedly connected to the outer sides of the cylindrical pipe body and the conical pipe body, a double-headed screw rod is rotatably connected to the inside of the additional shell, two screw threads are arranged on the outer side of the double-headed screw rod, the two screw threads are symmetrically arranged, and clamping plates are threadedly connected to the outer sides of the two screw threads.

[0013] Further, a servo motor is fixedly connected to the outer side of the additional shell.

[0014] Further, the wear-resistant rubber plate comprises a plurality of rubber gaskets, the rubber gaskets are detachably fixedly connected to the inner wall of the sand hopper body, the rubber gaskets are arranged in an annular array around the axis of the sand hopper body, and the rubber gaskets are fixedly connected with the connecting parts.

[0015] Further, the connecting part comprises two connecting strips, and the two connecting strips are fixedly connected to the mutually close side edges of the two rubber gaskets.

[0016] Further, the mutually far side of the two connecting strips is provided with an inclined groove, and the mutually close side of the two clamping plates is provided with a positioning protrusion.

[0017] Further, the positioning protrusion is a rotating drum rotatably connected to the clamping plate.

[0018] The technical effects achieved by the utility model are as follows:

[0019] The special metering sand hopper for preparing mortar from coal gangue can place the connecting parts in the mounting grooves and remove the connecting parts from the mounting grooves, so that the wear-resistant rubber plates can be installed and removed simply. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is the structure schematic view of the sand hopper main body of the utility model;

[0022] Figure 3 is the sectional structure schematic view of the sand hopper main body of the utility model;

[0023] Figure 4 is the top view structure view of the utility model Figure 2 at A place;

[0024] Figure 5 is the structure schematic view of the utility model Figure 4 at B place positioning convex part is limited to the structure schematic view when rotating drum.

[0025] In the drawing, the component list represented by each mark is as follows:

[0026] 1, rack;2, sand hopper main body;3, butterfly valve;4, cylindrical pipe body;5, conical pipe body;6, rubber gasket;7, additional shell;8, connecting strip;9, servo motor;10, double-end screw;11, guide rod;12, clamping plate;13, inclined chute;14, positioning convex part;15, rotating drum;16, pressure sensor. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and explicit, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0028] As Figures 1-5 shown, a special metering sand hopper for coal gangue preparation mortar includes a rack 1, the rack 1 is fixedly connected with a sand hopper main body 2 and a pressure sensor 16, the sand hopper main body 2 is used for storing coal gangue, the upper end of the sand hopper main body 2 is provided with a feeding port, the lower end of the sand hopper main body 2 is provided with a discharging port, and the lower end of the sand hopper main body 2 is fixedly connected with a butterfly valve 3, the discharging port can be sealed through the butterfly valve 3, at this time, the sand hopper main body 2 inside can be fed through the feeding port, when the butterfly valve 3 is opened, the coal gangue inside the sand hopper main body 2 can be discharged, the diameter of the butterfly valve 3 is adjusted from DN200 to DN300, and the number of the butterfly valve 3 can be two, and the two butterfly valves 3 are vertically overlapped.

[0029] The pressure sensor 16 is used for measuring the weight of the remaining coal gangue inside the sand hopper main body 2, the pressure sensor 16 can be fixedly connected between the rack 1 and the sand hopper main body 2, or can be fixedly connected on the lower side of the rack 1, as long as the weight of the remaining coal gangue inside the sand hopper main body 2 can be measured.

[0030] As Figures 1-3As shown, the main body 2 of the sand hopper includes a cylindrical tube 4 fixedly connected to the frame 1. A conical tube 5 is fixedly connected to the lower end of the cylindrical tube 4. The included angle between the inner wall of the conical tube 5 and the horizontal plane is preferably 65°. Compared with the design angle of 50° for ordinary silos, the design of 65° can make the material discharge smoother and reduce the blockage.

[0031] Because coal gangue sand is lighter than ordinary sand, it is not easy to feed and has more needle-like and flaky parts, which easily wears down the inner wall of the sand hopper body 2. This technical solution has a wear-resistant rubber plate that can be detachably fixed to the inner wall of the sand hopper body 2 to reduce wear.

[0032] like Figures 2-5 As shown, this technical solution further improves the structure of the wear-resistant rubber sheet. Multiple connecting parts arranged in a ring array are fixedly connected to the periphery of the wear-resistant rubber sheet. Multiple mounting grooves that are adapted to the connecting parts are opened on the side wall of the sand hopper body 2. The width of the mounting groove is greater than that of the connecting part, preferably 1 mm greater than that of the connecting part. This makes it easier to place the connecting part inside the mounting groove and to remove the connecting part from the mounting groove. This makes it easier to install and remove the wear-resistant rubber sheet. A locking member located outside the mounting groove is fixedly connected to the outside of the sand hopper body 2. The locking member is used to lock the connecting part installed inside the mounting groove, thereby fixing the wear-resistant rubber sheet inside the sand hopper body 2.

[0033] like Figures 2-4 As shown, the locking component includes an auxiliary shell 7 fixedly connected to the outer sides of the cylindrical tube 4 and the conical tube 5 respectively. A double-ended screw 10 is rotatably connected inside the auxiliary shell 7. The double-ended screw 10 has two threaded parts on its outer side, which are symmetrically arranged, that is, the thread directions of the two threaded parts are opposite. A clamping plate 12 is threadedly connected to the outer side of each of the two threaded parts. At this time, by rotating the double-ended screw 10, the two clamping plates 12 are moved in opposite directions, and the connection part can be clamped and fixed by the two clamping plates 12. At this time, the connection part can be fixed and released by moving the clamping plates 12.

[0034] A servo motor 9 can be fixedly connected to the outside of the auxiliary shell 7. The output end of the servo motor 9 is fixedly connected to the double-headed screw 10, which is used to drive the clamping plate 12 to move.

[0035] Meanwhile, a guide rod 11 can be fixedly connected inside the auxiliary shell 7, and the clamping plate 12 is slidably connected to the outside of the guide rod 11. The clamping plate 12 can be guided by the guide rod 11.

[0036] The wear-resistant rubber plate includes multiple rubber pads 6, which are detachably and fixedly connected to the inner wall of the sand hopper body 2. The multiple rubber pads 6 are arranged in a ring array around the axis of the sand hopper body 2. The rubber pads 6 are fixedly connected to the connecting part, and the rubber pads 6 can be fixed through the fixed connecting part. At this time, the corresponding rubber pads 6 can be replaced according to the wear condition of the rubber pads 6, reducing the need to leave the remaining ring rubber plates on the inner wall of the hopper for continued use, thereby reducing the need to replace the unworn areas of the wear-resistant rubber plate and reducing the material consumption of the wear-resistant rubber plate.

[0037] Meanwhile, the connecting part includes two connecting strips 8, which are fixedly connected to the outer sides of the two rubber pads 6 that are close to each other. The two connecting strips 8 can be spliced ​​into a strip structure. At this time, by fixing the connecting strips 8 to the sides of both sides of the rubber pad 6, the two sides of the rubber pad 6 can be fixed through the two connecting parts, thereby improving the fixing stability and reducing the warping of the sides of the rubber pad 6.

[0038] like Figure 4 As shown, inclined grooves 13 can be opened on the side of the two connecting strips 8 that are far apart from each other, and positioning protrusions 14 are installed on the side of the two clamping plates 12 that are close to each other. Through the contact between the positioning protrusions 14 and the connecting strips 8, the connecting strips 8 can apply a pulling force to the rubber pad 6, causing the rubber pad 6 to move towards the direction close to the auxiliary shell 7, so that the rubber pad 6 and the side wall of the sand hopper body 2 can be tightly fitted automatically.

[0039] The connecting strip 8 can be made of hard rubber or metal. In this technical solution, metal is preferred because it has a smooth surface to reduce friction.

[0040] Meanwhile, the positioning protrusion 14 can be a top block with an inclined surface, or it can be a rotating cylinder 15 rotatably connected to the clamping plate 12. When the positioning protrusion 14 is a rotating cylinder 15, the frictional force when the positioning protrusion 14 and the inclined surface of the inclined groove 13 come into contact can be reduced.

[0041] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A special metering hopper for preparing mortar from coal gangue, characterized in that: Includes a frame (1), on which a sand hopper body (2) and a pressure sensor (16) are fixedly connected. The upper end of the sand hopper body (2) is provided with a feed port, the lower end of the sand hopper body (2) is provided with a discharge port, and the lower end of the sand hopper body (2) is fixedly connected with a butterfly valve (3). The main body (2) of the sand bucket includes a cylindrical tube (4) fixedly connected to the frame (1), and a conical tube (5) is fixedly connected to the lower end of the cylindrical tube (4). The inner wall of the sand hopper body (2) is detachably fixedly connected to a wear-resistant rubber plate. Multiple connecting parts arranged in a ring array are fixedly connected to the periphery of the wear-resistant rubber plate. Multiple mounting grooves that are adapted to the connecting parts are opened on the side wall of the sand hopper body (2). The width of the mounting groove is greater than that of the connecting part. A locking member located outside the mounting groove is fixedly connected to the outer side of the sand hopper body (2). The locking member is used to lock the connecting part installed inside the mounting groove.

2. The special metering hopper for preparing mortar from coal gangue according to claim 1, characterized in that: The number of butterfly valves (3) is two, and the two butterfly valves (3) are vertically overlapped. The diameter of the butterfly valves (3) is DN300.

3. The special metering hopper for preparing mortar from coal gangue according to claim 1, characterized in that: The angle between the inner wall of the conical tube (5) and the horizontal plane is 65°.

4. The metering hopper for preparing mortar from coal gangue according to claim 1, characterized in that: The locking component includes an additional shell (7) that is fixedly connected to the outside of the cylindrical tube (4) and the conical tube (5) respectively. A double-ended screw (10) is rotatably connected inside the additional shell (7). Two threaded parts are provided on the outside of the double-ended screw (10). The two threaded parts are symmetrically arranged. A clamping plate (12) is threadedly connected to the outside of each of the two threaded parts.

5. A special metering hopper for preparing mortar from coal gangue according to claim 4, characterized in that: A servo motor (9) is fixedly connected to the outside of the additional shell (7).

6. A special metering hopper for preparing mortar from coal gangue according to claim 5, characterized in that: The wear-resistant rubber plate includes multiple rubber pads (6), which are detachably and fixedly connected to the inner wall of the sand hopper body (2). The multiple rubber pads (6) are arranged in a ring array with the axis of the sand hopper body (2). The rubber pads (6) are fixedly connected to the connecting part.

7. A special metering hopper for preparing mortar from coal gangue according to claim 6, characterized in that: The connecting part includes two connecting strips (8), which are respectively fixedly connected to the outer sides of the two rubber pads (6) that are close to each other.

8. A special metering hopper for preparing mortar from coal gangue according to claim 7, characterized in that: The two connecting strips (8) are provided with inclined grooves (13) on the side away from each other, and the two clamping plates (12) are provided with positioning protrusions (14) on the side close to each other.

9. A special metering hopper for preparing mortar from coal gangue according to claim 8, characterized in that: The positioning protrusion (14) is a rotating cylinder (15) rotatably connected to the clamping plate (12).

Images