Combined sealed mill feeding spiral device

Abstract

The utility model discloses a combined sealing mill feeding spiral device, and particularly relates to the technical field of mills, which comprises a barrel, a pressing sleeve mounted on one side of the barrel, a feeding elbow mounted in the pressing sleeve, a sealing component mounted on the inner side of the barrel, a feeding spiral support arranged in the barrel, and a spiral mechanism mounted on the inner side of the feeding spiral support. According to the utility model, the sealing assembly and the screw mechanism are arranged, so that a dual-sealing effect can be formed, slurry leakage or dust escape at the feeding end of the mill is reduced, slurry leakage and material returning are prevented, meanwhile, the conveying capacity of materials can be enhanced, the materials can continuously and stably enter the mill, and the production efficiency of the mill is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mills, and more particularly to a combined sealed mill feed screw device. Background Art

[0002] When the wet ball mill is running, the steel balls are thrown down from a high altitude to impact the material in the ball mill to form slurry waves. The slurry waves surge along the axial direction of the mill and impact the joint surface between the feed spiral barrel and the feed chute, as well as the joint surface between the feed spiral barrel and the feed end cover, which can easily cause leakage.

[0003] Ball mills are generally used to grind cement. However, the feed port of the current ball mill's feeding device is prone to dust, polluting the environment and failing to meet demand.

[0004] After searching, the Chinese patent with the announcement number CN219400495U discloses a screw feeding device for a cement ball mill. During feeding, the vacuum pump and the water pump assembly are started. The vacuum pump can pump the lighter cement dust into the dust reduction inner frame, and the water pump assembly can pump the water in the water collecting chamber into the hollow spray ball to spray and remove the cement dust. The dust-containing gas can be purified again through the dustproof net to improve the purification efficiency.

[0005] When the above-mentioned cement ball mill spiral feeding device is actually used, slurry leakage and dust escape are prone to occur at the feed end of the mill during the material transportation process, which will lead to unstable amount of material entering the mill, thereby affecting the grinding effect of the mill and product quality. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a combined sealed mill feed screw device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The combined sealed grinding mill feed screw device comprises a cylinder, a press sleeve is installed on one side of the cylinder, a feed elbow is installed inside the press sleeve, a sealing assembly is installed on the inside of the cylinder, a feed screw bracket is provided inside the cylinder, a spiral mechanism is installed on the inside of the feed screw bracket, the sealing assembly comprises a sealing cone, the sealing cone is installed on the outside of the cylinder, a fastening clamp is installed on the outside of the sealing cone, an inner sealing plate is provided on the inside of the feed screw bracket, an outer sealing plate is installed on the inside of the feed screw bracket, a sealing pressure plate is installed on one side of the outer sealing plate, a bolt is rotatably connected to the inside of the sealing pressure plate, the outer sealing plate and the inside of the feed screw bracket are both threadedly connected to the outside of the bolt, one end of the bolt is rotatably connected to the inside of the feed screw bracket, and an adjustment sealing ring is installed on the inside of the feed screw bracket.

[0009] By adopting the above technical solution, a double sealing effect can be achieved, which can effectively prevent slurry leakage and material return.

[0010] As a further description of the above technical solution: the spiral mechanism includes two long spirals, the long spirals are fixedly connected to the inner side of the feed spiral bracket, and the two long spirals are symmetrically distributed on the inner side of the feed spiral bracket; the inner side of the feed spiral bracket is fixedly connected to two short spirals, and the two short spirals are symmetrically distributed on the inner side of the feed spiral bracket.

[0011] By adopting the above technical solution, the material conveying capacity is enhanced and it helps to achieve uniform distribution of the material in the mill cylinder.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. By setting up a sealing assembly, compared with the existing technology, the inner and outer sealing plates can rotate on both sides of the sealing cone, forming a double sealing effect with the sealing cone during elastic deformation and having a self-aligning function, thereby reducing slurry leakage or dust escape at the feed end of the mill, and preventing slurry leakage and material return;

[0014] 2. By setting up a spiral mechanism, compared with the existing technology, the material conveying capacity can be enhanced by rotating the feed spiral bracket to drive the two long spirals and the short spiral to rotate. The two long spirals and the short spiral cooperate with each other in length, which can more effectively force the material from the feed port into the inside of the mill cylinder, and can continuously and stably feed the material into the mill, thereby improving the production efficiency of the mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the cylinder of the present utility model.

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the structure of the enlarged view of part A.

[0018] The accompanying drawings are marked as follows: 1. Cylinder; 2. Press sleeve; 3. Feed elbow; 4. Sealing cone; 5. Feed spiral bracket; 6. Inner sealing plate; 7. Outer sealing plate; 8. Sealing pressure plate; 9. Bolt; 10. Adjusting sealing ring; 11. Long spiral; 12. Short spiral; 13. Fastening clamp. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The embodiments of this application disclose Figure 1-3 The combined sealed mill feed screw device shown includes a cylinder 1, a press sleeve 2 is installed on one side of the cylinder 1, a feed elbow 3 is installed inside the press sleeve 2, a sealing assembly is installed on the inside of the cylinder 1, a feed screw bracket 5 is provided inside the cylinder 1, a spiral mechanism is installed inside the feed screw bracket 5, the sealing assembly includes a sealing cone 4, the sealing cone 4 is installed on the outside of the cylinder 1, a fastening clamp 13 is installed on the outside of the sealing cone 4, an inner sealing plate 6 is provided on the inside of the feed screw bracket 5, an outer sealing plate 7 is installed on the inside of the feed screw bracket 5, a sealing pressure plate 8 is installed on one side of the outer sealing plate 7, a bolt 9 is rotatably connected to the sealing pressure plate 8, and the outer sealing plate 7 and the inner part of the feed screw bracket 5 are both threadedly connected to the outer side of the bolt 9. One end of the bolt 9 is rotatably connected to the inside of the feed spiral bracket 5, and an adjustment sealing ring 10 is installed on the inside of the feed spiral bracket 5. The inner sealing plate 6 and the outer sealing plate 7 can be fixed to the feed spiral bracket 5 through the bolt 9, and the inner sealing plate 6 and the outer sealing plate 7 are placed on both sides of the sealing cone 4 for clamping. When the sealing cone 4 is subjected to material pressure or vibration, the inner sealing plate 6 is pushed to deform inward, and the outer sealing plate 7 is reversely pressed by the pre-tightening force of the bolt. The elastic deformation of the sealing ring 10 is adjusted to adaptively adjust the position to ensure that the sealing surfaces of the inner sealing plate 6 and the outer sealing plate 7 are always in contact, so that the inner sealing plate 6 and the outer sealing plate 7 form a double sealing effect and have a self-aligning effect, thereby preventing leakage and return of material.

[0021] Reference Figure 2As shown, the spiral mechanism includes two long spirals 11, which are fixedly connected to the inner side of the feed spiral bracket 5, and the two long spirals 11 are symmetrically distributed on the inner side of the feed spiral bracket 5. Two short spirals 12 are fixedly connected to the inner side of the feed spiral bracket 5, and the two short spirals 12 are symmetrically distributed on the inner side of the feed spiral bracket 5. The feed spiral bracket 5 can follow the cylinder 1 to drive the two long spirals 11 and the short spirals 12 to rotate. The long spirals 11 and the short spirals 12 cooperate with each other to more effectively force the material from the feed port into the interior of the mill cylinder, thereby ensuring that the material can enter the mill continuously and stably.

[0022] Working principle of the utility model: The utility model designs a combined sealed mill feed screw device, the specific structure is as shown in the attached manual Figure 1-3 As shown, in the present technical solution, through the mutual cooperation between various structures, the sealing cone 4 can be fixed to the outside of the feed elbow 3 by using the fastening clamp 13, and then the feed elbow 3 is placed on the inside of the cylinder 1, and the sealing cone 4 is placed between the inner sealing plate 6 and the outer sealing plate 7, and then the sealing pressure plate 8 is placed on the + side, and the outer sealing plate 7 and the inner sealing plate 6 can be fixed to the feed spiral bracket 5 by bolts 9, so that the inner sealing plate 6 and the outer sealing plate 7 can be clamped on both sides of the sealing cone 4. When the cylinder 1 rotates, the feed spiral bracket 5 rotates with the cylinder 1, and the feed spiral bracket 5 can drive the two long spirals 11 and the short spiral 12 to rotate. At the same time, the feed spiral bracket 5 can drive the inner sealing plate 6 and the outer sealing plate 7 to rotate together through the sealing pressure plate 8 and the bolts 9. By adjusting the elastic deformation of the sealing ring 10, the position is adaptively adjusted to compensate for the deviation caused by installation error or equipment vibration, ensuring that the sealing surface of the inner sealing plate 6 and the outer sealing plate 7 are always in contact, and the inner sealing plate 6 directly contacts the sealing cone 4 to form a first seal, blocking most of the slurry or dust. The outer sealing plate 7 is pressed against the sealing cone 4 through elastic deformation to form a second seal, further blocking the residual leakage path, so that the outer sealing plate 7 and the inner sealing plate 6 form a double sealing effect with the sealing cone 4 during the elastic deformation process, and have a self-aligning effect, thereby preventing slurry leakage and material return. The two long spirals 11 can penetrate into the material pile, grab and transport the material from a deeper depth, and the two short spirals 12 can further push the material near the feed port, thereby reducing the accumulation of material at the feed port.

[0023] The drawings of the embodiments disclosed in the present invention only relate to the structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention may be combined with each other.

[0024] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned belong to the prior art and are not shown in the figures and will not be described here again;

[0025] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined sealed mill feed screw device, comprising a barrel (1), characterized in that: A pressing sleeve (2) is installed on one side of the cylinder (1), a feed elbow (3) is installed inside the pressing sleeve (2), a sealing assembly is installed inside the cylinder (1), a feed spiral bracket (5) is provided inside the cylinder (1), and a spiral mechanism is installed inside the feed spiral bracket (5).

2. The combined sealed mill feed screw device according to claim 1, characterized in that: The sealing assembly comprises a sealing cone (4), the sealing cone (4) being mounted on the outside of the cylinder (1), and a fastening clamp ring (13) being mounted on the outside of the sealing cone (4).

3. The combined sealed mill feed screw device according to claim 1, characterized in that: An inner sealing plate (6) is provided on the inner side of the feed spiral bracket (5), and an outer sealing plate (7) is installed on the inner side of the feed spiral bracket (5).

4. The combined sealed mill feed screw device according to claim 3, characterized in that: A sealing pressure plate (8) is installed on one side of the outer sealing plate (7), and a bolt (9) is rotatably connected inside the sealing pressure plate (8).

5. The combined sealed mill feed screw device according to claim 3, characterized in that: The outer sealing plate (7) and the inside of the feed spiral bracket (5) are both threadedly connected to the outside of the bolt (9), one end of the bolt (9) is rotatably connected to the inside of the feed spiral bracket (5), and an adjustment sealing ring (10) is installed on the inside of the feed spiral bracket (5).

6. The combined sealed mill feed screw device according to claim 1, characterized in that: The spiral mechanism comprises two long spirals (11), the long spirals (11) are fixedly connected to the inner side of the feed spiral bracket (5), and the two long spirals (11) are symmetrically distributed to the inner side of the feed spiral bracket (5).

7. The combined sealed mill feed screw device according to claim 1, characterized in that: Two short spirals (12) are fixedly connected to the inner side of the feed spiral bracket (5), and the two short spirals (12) are symmetrically distributed on the inner side of the feed spiral bracket (5).

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