Dolomite powder discharging device

Abstract

The utility model discloses a dolomite powder discharging device, which belongs to the technical field of dolomite powder processing equipment and comprises a hopper, a discharging pipe and a tightening piece, the discharging pipe is detachably connected below the hopper, the lower end of the discharging pipe is obliquely arranged, a connecting ring is arranged on the discharging pipe, and the tightening piece is connected with the hopper. The upper end of the tightening piece is rotatably connected to the connecting ring, a first clamping column and a second clamping column are arranged on the inner wall of the tightening piece, the first clamping column abuts against the plane side wall of the discharging pipe, the second clamping column abuts against the inclined face side wall of the discharging pipe, an air cylinder is arranged on the hopper, and the air cylinder is connected with the tightening piece. The output end of the air cylinder is rotationally connected with the tightening piece. The tightening pieces on the two sides are driven by the air cylinder to tighten and clamp the bag opening, when materials fall into the material bag, the bag opening cannot be separated from the discharging pipe, and the situation that the raw materials fall out of the material bag due to the fact that the bag opening is separated from the discharging pipe during discharging operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dolomite powder processing equipment, in particular to a dolomite powder discharging device. Background Art

[0002] Dolomite powder is an important industrial raw material, mainly composed of calcium magnesium carbonate, belonging to anhydrous carbonate mineral powder, and is mainly obtained by processes such as beneficiation, coarse crushing, medium crushing, grinding, classification, and packaging of dolomite ore. The production equipment of dolomite powder mainly relies on processes such as crushing, grinding, and screening. The crushing equipment mainly includes jaw crushers, impact crushers, and cone crushers, etc.; the grinding equipment is divided into vertical mills and Raymond mills, etc.; the screening equipment is used to classify the ground dolomite powder to meet different application requirements.

[0003] After the screening of dolomite powder is completed, it needs to be placed into a material bag for transportation or storage. Generally, the bag mouth of the material bag is sleeved on the feeding pipe, and then the bag mouth is fixed with a rubber ring. Since the materials have been filtered and screened, there will be a certain amount of moisture inside, and the materials are likely to agglomerate when piled up. The agglomerated materials are likely to block the discharge port of the feeding pipe, and when falling into the material bag, they will pour to one side, and even the rubber ring will fly off due to excessive impact force, resulting in the bag mouth detaching from the feeding pipe and the materials being exposed. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a dolomite powder discharging device, aiming to solve the problems raised in the above background.

[0005] To achieve the above purpose, a dolomite powder discharging device proposed by the utility model includes a hopper, a feeding pipe, and a tightening member. The feeding pipe is detachably connected below the hopper. The lower end of the feeding pipe is inclined. A connecting ring is provided on the feeding pipe. The upper end of the tightening member is rotatably connected to the connecting ring. The inner wall of the tightening member is provided with a first clamping column and a second clamping column. The first clamping column abuts against the flat side wall of the feeding pipe, and the second clamping column abuts against the inclined side wall of the feeding pipe. A cylinder is provided on the hopper, and the output end of the cylinder is rotatably connected to the tightening member. Further, by driving the tightening members on both sides to tighten and clamp the bag mouth by the cylinder, the bag mouth will not detach from the feeding pipe when the materials fall into the material bag.

[0006] Optionally, a sliding groove is formed on the surface of the blanking pipe, and a boss is provided on the connecting ring. The boss is stuck in the sliding groove and can move within the sliding groove. Further, when the top of the boss abuts against the top of the sliding groove, the first clamping column abuts against the planar side wall of the blanking pipe, and the second clamping column abuts against the inclined side wall of the blanking pipe; when the bottom of the boss abuts against the bottom of the sliding groove, the first clamping column abuts against the inclined side wall of the blanking pipe, and the second clamping column disengages from the blanking pipe and is located below the blanking pipe to clamp the bag mouth.

[0007] Optionally, a frustum is provided on the connecting ring, and a rotating shaft is provided on the frustum. The tightening member is mounted on the connecting ring by connecting with the rotating shaft. Further, the tightening member can be flipped with the rotating shaft as the axis.

[0008] Optionally, the length of the second clamping column is longer than that of the first clamping column.

[0009] Optionally, a switching valve is provided in the blanking pipe, and a dispersion structure is provided below the switching valve.

[0010] Optionally, the dispersion structure includes a frame and a plurality of vertical plates, and each vertical plate is arranged in the frame at intervals. Further, when the agglomerated materials fall onto the vertical plates, they are cut by the vertically plates arranged at intervals into small pieces of materials, which can avoid blockage and prevent the materials from toppling to one side in the material bag when falling into the material bag.

[0011] Optionally, rubber pads are respectively provided at the ends of the first clamping column and the second clamping column. Further, the rubber pads can protect the bag mouth from being damaged by the first clamping column and the second clamping column, and can also increase the friction force between the bag mouths to improve the clamping stability.

[0012] Optionally, a support plate for placing the material bag is provided below the blanking pipe, and a conveying mechanism is provided at the bottom of the support plate for conveying the material bag.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The dolomite powder unloading device of the technical solution of the utility model is provided with a hopper, a feeding tube and a tightening piece, the feeding tube is detachably connected to the bottom of the hopper, the lower end of the feeding tube is inclined, the feeding tube is provided with a connecting ring, the upper end of the tightening piece is rotatably connected to the connecting ring, the inner wall of the tightening piece is provided with a first clamping column and a second clamping column, the first clamping column abuts against the plane side wall of the feeding tube, the second clamping column abuts against the inclined side wall of the feeding tube, the hopper is provided with a cylinder, the output end of the cylinder is rotatably connected to the tightening piece; the tightening pieces on both sides are driven by the cylinder to tighten and clamp the bag mouth, when the material falls into the material bag, the bag mouth will not separate from the feeding tube, so as to avoid the bag mouth separating from the feeding tube during the unloading operation and causing the raw materials to fall outside the material bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a schematic structural diagram of an embodiment of a dolomite powder unloading device of the utility model;

[0017] Figure 2 This is a schematic structural diagram of an embodiment of a dolomite powder unloading device of the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure of the middle and lower feeding pipe;

[0019] Figure 4 for Figure 1 A structural schematic diagram of the connecting ring.

[0020] Description of Figure Numbers:

[0021]

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The present invention provides a dolomite powder unloading device 100.

[0027] Please refer to Figures 1-4 , in an embodiment of the present invention, the dolomite powder unloading device 100 includes a hopper 10, a blanking pipe 20 and a tightening member 40. The blanking pipe 20 is detachably connected below the hopper 10. The lower end of the blanking pipe 20 is inclined. A connecting ring 30 is provided on the blanking pipe 20. The upper end of the tightening member 40 is rotatably connected to the connecting ring 30. The inner wall of the tightening member 40 is provided with a first clamping column 41 and a second clamping column 42. The first clamping column 41 abuts against the flat side wall of the blanking pipe 20, and the second clamping column 42 abuts against the inclined side wall of the blanking pipe 20. A first connecting platform 11 is provided on the hopper 10, and a cylinder 50 is provided on the first connecting platform 11. The output end of the cylinder 50 is rotatably connected to the tightening member 40. By driving the tightening members 40 on both sides to tighten and clamp the bag mouth by the cylinder 50, the bag mouth will not be separated from the blanking pipe 20 when the material falls into the material bag.

[0028] In this embodiment, the hopper 10 is directly connected to the raw material bin, and a rag is used to block dust at the connection between the two to prevent leakage of raw material powder; a second connecting platform 44 is provided on the tightening member 40, and the output end of the cylinder 50 is connected to the second connecting platform 44, wherein the length of the second clamping column 42 is longer than that of the first clamping column 41. Under the drive of the cylinder 50, the first clamping column 41 abuts against the plane side wall of the discharge pipe 20, and the second clamping column 42 abuts against the inclined side wall of the discharge pipe 20, which can better clamp the column bag opening to prevent the bag opening from detaching from the discharge pipe 20 during the unloading operation, causing the raw materials to fall outside the material bag;

[0029] The cylinder 50 may be a locking cylinder with a locking function. A support plate 80 for placing material bags is provided below the discharge pipe 20. A conveying mechanism 81 is provided at the bottom of the support plate 80 for transmitting material bags. The conveying mechanism 81 may be a common pulley conveying mechanism.

[0030] In one embodiment of the utility model, a sliding groove 21 is provided on the surface of the feed tube 20, and a boss 31 is provided on the connecting ring. The boss 31 is stuck in the sliding groove 21 and can move in the sliding groove 21; a frustum 32 is provided on the connecting ring 30, and a rotating shaft 33 is provided on the frustum 32. The tightening member 40 is installed on the connecting ring 30 by being connected to the rotating shaft 33, so that the tightening member 40 can be flipped with the rotating shaft 33 as the axis.

[0031] In this embodiment, the thickness of the boss 31 is smaller than the length of the sliding groove 21. When the top of the boss 31 is against the top of the sliding groove 21, a block 34 is placed in the sliding groove 21 so that the connecting ring 30 does not slide down. At this time, under the drive of the cylinder 50, the first clamping column 41 is against the plane side wall of the feeding tube 20, and the second clamping column 42 is against the inclined side wall of the feeding tube 20, so as to stably clamp the bag mouth on the outer wall of the feeding tube 20. Since the material bag is very heavy, the worker directly Grasping the bag opening of the material bag may easily cause the bag to tip over. When the material bag is almost full when observed with the naked eye, stop discharging the material and take out the blocking block 34, then move the connecting ring 30 downward. At this time, the bottom of the boss 31 abuts against the bottom of the sliding groove 21, and the first clamping column 41 abuts against the inclined side wall of the discharge tube 20. The second clamping column 42 is separated from the discharge tube 20 and is located below the discharge tube 20 to clamp the bag opening, so that the bag opening will not fall or deviate to cause material leakage, and it is convenient for the staff to tie up the bag opening.

[0032] Rubber pads 43 are respectively provided at the ends of the first clamping post 41 and the second clamping post 42 to protect the bag mouth from being damaged by the first clamping post 41 and the second clamping post 42, and also to increase the friction between the bag mouths and improve the clamping stability.

[0033] In an embodiment of the present utility model, a switching valve 60 is provided in the material discharge pipe 20, and a dispersion structure 70 is provided below the switching valve 60. The dispersion structure 70 includes a frame 71 and a plurality of vertical plates 72, and each vertical plate 72 is arranged at intervals within the frame 71.

[0034] In this embodiment, the switching valve 60 controls the material to enter the material bag from the material discharge pipe 20. Since the materials have all been filtered and screened, there will be a certain amount of moisture inside. The materials are prone to agglomeration when piled up. The agglomerated materials are likely to block the discharge port of the material discharge pipe 20, and when falling into the material bag, they will fall to one side, causing the bag mouth to shift, and the materials are likely to fall outside the material bag, resulting in waste. When the agglomerated materials fall onto the vertical plates 72, they are cut by the vertically arranged plates 72 at intervals into small pieces of materials. While avoiding blockage, when falling into the material bag, they will not fall to one side inside the material bag.

[0035] Working principle: Before putting the bag mouth of the material bag onto the material discharge pipe 20, first move the connecting ring 30 upward so that the top of the boss 31 abuts against the top of the sliding groove 21, and then place the clamping block 34 in the sliding groove 21 to abut against the connecting ring 30 to prevent it from sliding down. Then put the material bag onto the material discharge pipe 20, start the air cylinder 50 to drive the tightening members 40 on both sides to tighten and clamp the bag mouth, open the switching valve 60, and the materials fall into the material bag. When it is observed by the naked eye that the material bag is almost full, close the switching valve 60 to stop the material from falling. Then pull out the clamping block 34 and move the connecting ring 30 downward. At this time, the first clamping post 41 abuts against the inclined side wall of the material discharge pipe 20, and the second clamping post 42 disengages from the material discharge pipe 20 and clamps the bag mouth below the material discharge pipe 20, so that the bag mouth will not fall and shift, resulting in material leakage, and it is convenient for the staff to tie the bag mouth.

[0036] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural transformations made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present utility model.

Claims

1. A dolomite powder unloading device, characterized in that It includes a hopper, a blanking pipe and a tightening member. The blanking pipe is detachably connected below the hopper. The lower end of the blanking pipe is inclined. A connecting ring is provided on the blanking pipe. The upper end of the tightening member is rotatably connected to the connecting ring. The inner wall of the tightening member is provided with a first clamping column and a second clamping column. The first clamping column abuts against the flat side wall of the blanking pipe, and the second clamping column abuts against the inclined side wall of the blanking pipe. A cylinder is provided on the hopper, and the output end of the cylinder is rotatably connected to the tightening member.

2. The dolomite powder discharging device according to claim 1, wherein: A sliding groove is formed on the surface of the blanking pipe, and a boss is provided on the connecting ring. The boss is stuck in the sliding groove and can move within the sliding groove.

3. The dolomite powder discharging device according to claim 1, wherein: A frustum is provided on the connecting ring, and a rotating shaft is provided on the frustum. The tightening member is mounted on the connecting ring by connecting with the rotating shaft.

4. The dolomite powder unloading device according to claim 1, wherein: The length of the second clamping column is longer than that of the first clamping column.

5. The dolomite powder unloading device according to claim 1, characterized in that: A switching valve is provided in the blanking pipe, and a dispersion structure is provided below the switching valve.

6. The dolomite powder discharging device according to claim 5, characterized in that: The dispersion structure includes a frame and several vertical plates, and each vertical plate is arranged at intervals within the frame.

7. The dolomite powder discharging device according to claim 1, characterized in that: Rubber pads are respectively provided at the ends of the first clamping column and the second clamping column.

8. The dolomite powder discharging device according to claim 1, wherein: A support plate for placing a material bag is provided below the blanking pipe, and a conveying mechanism is provided at the bottom of the support plate for conveying the material bag.

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