Feeding sealing structure of wet ball mill

Abstract

The invention relates to a feeding sealing structure of a wet ball mill. Comprising a spiral sleeve, a flexible sealing sleeve is rotationally connected into the spiral sleeve, a feeding pipe is fixedly connected to the end, away from the spiral sleeve, of the flexible sealing sleeve, a fixed sliding ring is slidably connected into the flexible sealing sleeve, and a flexible sealing extrusion ring is slidably connected to the side, away from the fixed sliding ring, of the flexible sealing sleeve; the side, away from the feeding pipe, of the flexible dense extrusion ring is fixedly connected with a cooling water pipe. Through cooperation of a heat transfer extrusion piston, a cooling water pipe and other structures, friction between the heat transfer extrusion piston and a spiral sleeve is matched with temperature rise of the spiral sleeve, the heat transfer extrusion piston transmits temperature to a transmission air cavity, then a driven wedge-shaped piston slides outwards, a sliding wedge-shaped shaft and a wedge-shaped piston column slide correspondingly, and the heat transfer effect is achieved. The cooling water pipe is unlocked, and water flow is input into the cooling water pipe.

Description

Technical Field

[0001] The invention relates to the field of wet ball mill sealing structures, in particular to a wet ball mill feeding sealing structure. Background Art

[0002] Wet ball mill is a common equipment used in mining and chemical industries to grind ores and other materials. It is mainly used to wet grind the raw materials through the inside of a rotating cylinder. Water or other liquids are usually used as the grinding medium. The cylinder is driven by a motor to rotate, so that the grinding medium and the material rub and grind against each other in the cylinder. This process will grind the raw materials into the desired particle size or mixture;

[0003] Since the wet ball mill rotates continuously during operation and the feeding device is fixed, the friction between the two will cause the temperature to rise, affecting the flexible sealing structure between the two. Limestones of various sizes in the desulfurization wet mill may enter between the feed pipe and the spiral sleeve during rotation, causing jamming, and may also cause wear to the sealing structure between the feed pipe and the spiral sleeve, thereby affecting the sealing of the device and the service life of the wet ball mill and the feeding device. Summary of the invention

[0004] The present invention aims to solve the technical problems in the prior art that the temperature generated by the friction between a wet ball mill and a feeding device affects the sealing state between the two and that foreign matter may enter the gap, causing wear and reducing the service life of the device, and provides a wet ball mill feeding sealing structure.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a wet ball mill feed sealing structure. It comprises a spiral sleeve, a flexible sealing sleeve is rotatably connected in the spiral sleeve, a feed pipe is fixedly connected to one end of the flexible sealing sleeve away from the spiral sleeve, a fixed sliding ring is slidably connected in the flexible sealing sleeve, a flexible sealing ring is slidably connected to one side of the flexible sealing sleeve away from the fixed sliding ring, and a cooling water pipe is fixedly connected to one side of the flexible sealing ring away from the feed pipe;

[0006] Among them, a limiting slip ring is slidably connected on the outer contour of the cooling water pipe, a second return spring is arranged between the limiting slip ring and the flexible tight extrusion ring, a limiting piston tube is slidably connected through the cooling water pipe, a second limiting tension spring is arranged between the limiting piston tube and the cooling water pipe, a rotating gear is fixedly connected to the outer contour of the cooling water pipe, the rotating gear is slidably connected with the limiting slip ring, an inner gear ring is arranged on the inner contour of the spiral sleeve, and the inner gear ring of the spiral sleeve is meshed with the rotating gear.

[0007] Preferably, a limiting gasket is fixedly connected to the fixed sliding ring, the limiting gasket has the same cross-sectional projection size as the limiting sliding ring, the end of the limiting sliding ring close to the fixed sliding ring is longer than the cooling water pipe, and the length of the limiting sliding ring longer than the cooling water pipe is the same as the length of the limiting gasket.

[0008] Preferably, the length of the cooling water pipe is the same as the inner cross-sectional length of the spiral sleeve.

[0009] Preferably, a sliding piston tube is fixedly connected to the side of the flexible sealing ring away from the spiral sleeve, the sliding piston tube is slidably connected to the flexible sealing sleeve, the sliding piston tube is slidably connected to a cooling water pipe, the cooling water pipe is slidably connected to a wedge-shaped piston column, a first limiting tension spring is arranged between the wedge-shaped piston column and the cooling water pipe, a sliding wedge-shaped shaft is slidably connected to the cooling water pipe, a first return spring is arranged between the sliding wedge-shaped shaft and the cooling water pipe, the sliding wedge-shaped shaft is wedge-matched with the wedge-shaped piston column, and one end of the cooling water pipe away from the flexible sealing sleeve is connected to the water pipe.

[0010] Preferably, the flexible sealing sleeve is fixedly connected to a transmission air cavity on the outside of the cooling water pipe, a heat transfer extrusion piston is slidably connected in the transmission air cavity, the heat transfer extrusion piston is slidably connected to the spiral sleeve, and a driven wedge piston is slidably connected to the end of the transmission air cavity away from the heat transfer extrusion piston, and the driven wedge piston is wedge-fitted with the sliding wedge shaft.

[0011] Preferably, a gas circulation pipeline is provided inside the heat transfer extrusion piston, and the heat transfer extrusion piston is made of a material with fast heat transfer.

[0012] Preferably, a limited extrusion spring is provided between the heat transfer extrusion piston and the transmission air chamber, and the heat transfer extrusion piston is slidably connected with the flexible sealing sleeve.

[0013] Preferably, the flexible sealing sleeve is fixedly connected to a transmission hydraulic chamber at one end in the spiral sleeve, a fixed piston is slidably connected in the transmission hydraulic chamber, the fixed piston is slidably connected to the spiral sleeve, a driven hydraulic chamber is fixedly connected to the lower side of the transmission hydraulic chamber, a driven piston is slidably connected in the driven hydraulic chamber, and the driven piston is fixedly connected to a fixed sliding ring.

[0014] Preferably, a hydraulic connecting pipe is provided between the transmission hydraulic chamber and the driven hydraulic chamber for connecting the transmission hydraulic chamber and the driven hydraulic chamber.

[0015] The beneficial effects of the present invention are:

[0016] The present invention arranges the cooperation of structures such as the heat transfer extrusion piston and the cooling water pipe, and through the friction between the heat transfer extrusion piston and the spiral sleeve, cooperates with the temperature increase of the spiral sleeve, so that the heat transfer extrusion piston transfers temperature to the transmission air cavity, and then the driven wedge-shaped piston slides outward, and then the sliding wedge-shaped shaft and the wedge-shaped piston column slide correspondingly, so that the cooling water pipe is unlocked, and the water flow is input into the cooling water pipe, so as to reduce the temperature between the feed pipe and the spiral pipe due to friction, and avoid the excessively high temperature affecting the sealing of the two.

[0017] The present invention cooperates with other structures such as a cooling water pipe and a cooling water pipe, and the water flow input in the cooling water pipe causes the sliding piston tube to slide toward the flexible sealing sleeve, thereby driving the flexible tight extrusion ring to slide in the same direction, thereby causing the cooling water pipe and the limiting sliding ring to slide in the same direction, and cooperates with the limiting pad ring to make the limiting sliding ring and the limiting piston tube slide in opposite directions, thereby causing the cooling water in the sliding piston tube to flow into the cooling water pipe, and cooperates with the meshing relationship between the rotating gear and the spiral sleeve to cause the water flow in the cooling water pipe to rotate and spray out, thereby achieving the purpose of cooling the frictional heating between the sealing structure and the spiral sleeve, avoiding deformation of the device caused by the frictional heating, and maintaining a tightly fitting state between the feed pipe and the spiral sleeve through the flexible sealing sleeve and the flexible extrusion ring made of flexible material, thereby avoiding large and small limestones in the spiral sleeve from entering the gap between the two;

[0018] The present invention cooperates with structures such as a heat transfer extrusion piston and a fixed piston, and through a convex ring arranged in the spiral sleeve, the fixed piston slides inward, cooperates with the transmission hydraulic chamber and the driven hydraulic chamber, and then causes the sliding fixed ring to slide in the opposite direction, so that the fixed piston and the fixed sliding ring cooperate to fix the inside of the spiral sleeve, and cooperates with the limit extrusion spring to squeeze the heat transfer extrusion piston, so that the heat transfer extrusion piston fixes the spiral sleeve on the outside, so that the sealing structure and the spiral sleeve are maintained in a tight fit through the flexible sealing sleeve and the flexible extrusion ring made of flexible material, so as to prevent limestone in the spiral sleeve from entering the gap and causing wear of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a half-section diagram of the structure of the present invention;

[0021] Figure 3 A half-section view of the spiral sleeve internal fixing structure of the present invention;

[0022] Figure 4 A half-section view of the spiral sleeve external fixing structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection between the heat transfer extrusion piston and the transmission air chamber of the present invention;

[0024] Figure 6A half-section schematic diagram of a cooling water pipe of the present invention;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram at A in the middle;

[0026] Figure 8 A half-section schematic diagram of a cooling water pipe of the present invention;

[0027] Fig. 9 For the present invention Figure 8 Schematic diagram at point B in the middle.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 100, spiral sleeve; 200, feed pipe; 300, flexible sealing sleeve; 400, fixed piston; 401, transmission hydraulic chamber; 402, driven hydraulic chamber; 403, hydraulic connecting pipe; 404, driven piston; 405, fixed sliding ring; 406, limiting pad ring; 500, transmission air chamber; 501, heat transfer extrusion piston; 502, limiting extrusion spring; 503, driven wedge piston; 600, cooling water pipe; 601, wedge piston column; 602, sliding wedge shaft; 603, first return spring; 604, first limit tension spring; 605, flexible tight extrusion ring; 606, sliding piston tube; 607, second return spring; 700, cooling water pipe; 701, limit sliding ring; 702, limit piston tube; 703, rotating gear; 704, second limit tension spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0031] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0033] Example 1

[0034] like Figures 1 to 9 As shown, the present invention provides a wet ball mill feed sealing structure, including a spiral sleeve 100, a flexible sealing sleeve 300 is rotatably connected in the spiral sleeve 100, a feed pipe 200 is fixedly connected to one end of the flexible sealing sleeve 300 away from the spiral sleeve 100, a fixed sliding ring 405 is slidably connected in the flexible sealing sleeve 300, a flexible sealing extrusion ring 605 is slidably connected to one side of the flexible sealing sleeve 300 away from the fixed sliding ring 405, and a cooling water pipe 700 is fixedly connected to one side of the flexible sealing extrusion ring 605 away from the feed pipe 200;

[0035] Among them, a limiting slip ring 701 is slidably connected on the outer contour of the cooling water pipe 700, a second reset spring 607 is arranged between the limiting slip ring 701 and the flexible tight extrusion ring 605, a limiting piston tube 702 is slidably connected through the cooling water pipe 700, a second limiting tension spring 704 is arranged between the limiting piston tube 702 and the cooling water pipe 700, a rotating gear 703 is fixedly connected to the outer contour of the cooling water pipe 700, the rotating gear 703 is slidably connected with the limiting slip ring 701, an inner gear ring is arranged on the inner contour of the spiral sleeve 100, and the inner gear ring of the spiral sleeve 100 is meshed with the rotating gear 703.

[0036] A limiting gasket 406 is fixedly connected to the fixed sliding ring 405. The limiting gasket 406 has the same cross-sectional projection size as the limiting sliding ring 701. The end of the limiting sliding ring 701 close to the fixed sliding ring 405 is longer than the cooling water pipe 700. The length of the limiting sliding ring 701 longer than the cooling water pipe 700 is the same as the length of the limiting gasket 406.

[0037] The length of the cooling water pipe 700 is the same as the inner cross-sectional length of the spiral sleeve 100 .

[0038] A sliding piston tube 606 is fixedly connected to the side of the flexible sealing ring 605 away from the spiral sleeve 100, and the sliding piston tube 606 is slidably connected to the flexible sealing sleeve 300. The sliding piston tube 606 is slidably connected to the cooling water pipe 600, and the cooling water pipe 600 is slidably connected to the wedge-shaped piston column 601. A first limiting tension spring 604 is arranged between the wedge-shaped piston column 601 and the cooling water pipe 600. A sliding wedge-shaped shaft 602 is slidably connected to the cooling water pipe 600, and a first return spring 603 is arranged between the sliding wedge-shaped shaft 602 and the cooling water pipe 600. The sliding wedge-shaped shaft 602 is wedge-matched with the wedge-shaped piston column 601, and the end of the cooling water pipe 600 away from the flexible sealing sleeve 300 is connected to the water pipe.

[0039] The flexible sealing sleeve 300 is fixedly connected to a transmission air chamber 500 on the outside of the cooling water pipe 600, a heat transfer extrusion piston 501 is slidably connected inside the transmission air chamber 500, the heat transfer extrusion piston 501 is slidably connected to the spiral sleeve 100, and a driven wedge piston 503 is slidably connected to one end of the transmission air chamber 500 away from the heat transfer extrusion piston 501, and the driven wedge piston 503 is wedge-matched with the sliding wedge shaft 602.

[0040] A gas circulation pipeline is provided inside the heat transfer extrusion piston 501, and the heat transfer extrusion piston 501 is made of a material with fast heat transfer.

[0041] During the operation of the wet ball mill, the feed pipe 200 and the flexible sealing sleeve 300 are fixed, and the spiral sleeve 100 rotates continuously. As the spiral sleeve 100 rotates continuously, the spiral sleeve 100 and the flexible sealing sleeve 300 rub against each other continuously, causing the temperature of the spiral sleeve 100 and the flexible sealing sleeve 300 to increase continuously. Continuous operation will reduce the service life of the machine. As the spiral sleeve 100 rotates continuously, it rubs against the heat transfer extrusion piston 501 continuously, causing the temperature of the heat transfer extrusion piston 501 to increase continuously. When the temperature of the heat transfer extrusion piston 501 increases to a certain temperature, the heat transfer speed of the heat transfer extrusion piston 501 is fast, causing the temperature in the transmission air chamber 500 to rise, and then the air pressure increases, causing the driven wedge piston 503 to slide away from the transmission air chamber 500, and then the wedge-shaped cooperation between the driven wedge piston 503 and the sliding wedge shaft 602 makes the sliding The movable wedge shaft 602 slides in the direction of the driven wedge piston 503 under the elastic force of the first return spring 603, and then under the action of the first limit tension spring 604, the wedge piston column 601 slides in the direction of the sliding piston tube 606, so that the closed state in the cooling water pipe 600 is unlocked, and the cooling water pipe 600 is filled with water, and then flows to the sliding piston tube 606, and then fills the sliding piston tube 606. However, due to the action of the second limit tension spring 704, the limit piston tube 702 is fixed, and the water flow in the sliding piston tube 606 squeezes to make the limit piston tube 702 more stable. When the sliding piston tube 606 is filled with water, the sliding piston tube 606 is driven by the water flow to slide with the flexible sealing extrusion ring 605 in the direction of the spiral sleeve 100 until the sliding piston tube 606 fits with the spiral sleeve 100 to fix the spiral sleeve 100.

[0042] While the flexible tight extrusion ring 605 fixes the spiral sleeve 100, as the flexible tight extrusion ring 605 slides in the direction of the spiral sleeve 100, the cooling water pipe 700 and the limiting slip ring 701 slide in the same direction, and then the limiting slip ring 701 slides in the opposite direction under the action of the limiting pad ring 406, so that the limiting slip ring 701 no longer blocks the water flow hole on the cooling water pipe 700, and at the same time, the limiting piston tube 702 slides in the opposite direction under the action of the fixed sliding ring 405, so that the limiting piston tube 702 and the cooling water pipe The sealing structure of 700 is unlocked, so that the water flow in the sliding piston tube 606 enters the cooling water pipe 700, and cooperates with the rotating gear 703 to engage with the spiral sleeve 100, so that the water flow in the cooling water pipe 700 cooperates with the continuous rotation of the cooling water pipe 700 and is sprayed out through the water flow holes on the cooling water pipe 700, thereby cooling the spiral sleeve 100 and the flexible sealing sleeve 300, so that the temperature rise caused by friction between the flexible sealing sleeve 300 and the spiral sleeve 100 is reduced, thereby extending the service life of the machine.

[0043] As the water flow continuously cools down the spiral sleeve 100 and the flexible sealing sleeve 300, when the temperature of the spiral sleeve 100 drops, the heat transfer extrusion piston 501 rubbing against the spiral sleeve 100 is affected by the temperature of the spiral sleeve 100, and the temperature transferred to the transmission air chamber 500 drops, and then the air pressure in the transmission air chamber 500 decreases, causing the driven wedge piston 503 to slide in the opposite direction, thereby resetting the sliding wedge shaft 602 and the wedge piston column 601, and then closing the water flow input in the cooling water pipe 600. When the water in the cooling water pipe 700 flows out, the cooling water pipe 700, the limit slip ring 701 and the flexible sealing extrusion ring 605 are reset, and then the limit slip ring 701 is reset under the action of the second reset spring 607.

[0044] Example 2

[0045] like Figure 3 and Figure 4 As shown, a limited extrusion spring 502 is provided between the heat transfer extrusion piston 501 and the transmission air chamber 500 , and the heat transfer extrusion piston 501 is slidably connected with the flexible sealing sleeve 300 .

[0046] A transmission hydraulic chamber 401 is fixedly connected to one end of the flexible sealing sleeve 300 in the spiral sleeve 100, a fixed piston 400 is slidably connected in the transmission hydraulic chamber 401, the fixed piston 400 is slidably connected to the spiral sleeve 100, a driven hydraulic chamber 402 is fixedly connected to the lower side of the transmission hydraulic chamber 401, a driven piston 404 is slidably connected in the driven hydraulic chamber 402, and the driven piston 404 is fixedly connected to a fixed sliding ring 405.

[0047] A hydraulic connection pipe 403 is provided between the transmission hydraulic chamber 401 and the driven hydraulic chamber 402 to connect the transmission hydraulic chamber 401 and the driven hydraulic chamber 402 .

[0048] A convex ring is disposed on the inner side of the spiral sleeve 100 opposite to the fixed piston 400 .

[0049] Before the spiral sleeve 100 rotates, due to the convex ring set in the spiral sleeve 100, the fixed piston 400 is squeezed to slide into the transmission hydraulic chamber 401, and the hydraulic oil in the transmission hydraulic chamber 401 flows to the driven hydraulic chamber 402 through the hydraulic connecting pipe 403, and then the driven piston 404 and the fixed sliding ring 405 are squeezed to slide in the direction of the spiral sleeve 100. The fixed piston 400 and the fixed sliding ring 405 cooperate with each other, so that the flexible sealing sleeve 300 and the spiral sleeve 100 are kept fixed inside the spiral sleeve 100, and the transmission air chamber 500 is set. The limiting extrusion spring 502 makes the heat transfer extrusion piston 501 always slidably connected with the spiral sleeve 100, so that when the heat transfer extrusion piston 501 transfers heat to the transmission air chamber 500, the heat transfer extrusion piston 501 keeps the flexible sealing sleeve 300 and the spiral sleeve 100 fixed on the outside of the spiral sleeve 100, so that the relative positions of the spiral sleeve 100 and the flexible sealing sleeve 300 are kept fixed, and the heat transfer extrusion piston 501 transfers the temperature of the spiral sleeve 100 so that the cooling water pipe 700 cools the inner surface of the spiral sleeve 100, thereby increasing the service life of the machine.

[0050] The working principle and use process of the present invention:

[0051] During the operation of the wet ball mill, the feed pipe 200 and the flexible sealing sleeve 300 are fixed, and the spiral sleeve 100 rotates continuously. As the spiral sleeve 100 rotates continuously, the spiral sleeve 100 and the flexible sealing sleeve 300 rub against each other continuously, causing the temperature of the spiral sleeve 100 and the flexible sealing sleeve 300 to increase continuously. Continuous operation will reduce the service life of the machine. As the spiral sleeve 100 rotates continuously, it rubs against the heat transfer extrusion piston 501 continuously, causing the temperature of the heat transfer extrusion piston 501 to increase continuously. When the temperature of the heat transfer extrusion piston 501 increases to a certain temperature, the heat transfer speed of the heat transfer extrusion piston 501 is fast, causing the temperature in the transmission air chamber 500 to rise, and then the air pressure increases, causing the driven wedge piston 503 to slide away from the transmission air chamber 500, and then the wedge-shaped cooperation between the driven wedge piston 503 and the sliding wedge shaft 602 makes the sliding The movable wedge shaft 602 slides in the direction of the driven wedge piston 503 under the elastic force of the first return spring 603, and then under the action of the first limit tension spring 604, the wedge piston column 601 slides in the direction of the sliding piston tube 606, so that the closed state in the cooling water pipe 600 is unlocked, and the cooling water pipe 600 is filled with water, and then flows to the sliding piston tube 606, and then fills the sliding piston tube 606. However, due to the action of the second limit tension spring 704, the limit piston tube 702 is fixed, and the water flow in the sliding piston tube 606 squeezes to make the limit piston tube 702 more stable. When the sliding piston tube 606 is filled with water, the sliding piston tube 606 is driven by the water flow to slide with the flexible sealing extrusion ring 605 in the direction of the spiral sleeve 100 until the sliding piston tube 606 fits with the spiral sleeve 100 to fix the spiral sleeve 100.

[0052] While the flexible tight extrusion ring 605 fixes the spiral sleeve 100, as the flexible tight extrusion ring 605 slides in the direction of the spiral sleeve 100, the cooling water pipe 700 and the limiting slip ring 701 slide in the same direction, and then the limiting slip ring 701 slides in the opposite direction under the action of the limiting pad ring 406, so that the limiting slip ring 701 no longer blocks the water flow hole on the cooling water pipe 700, and at the same time, the limiting piston tube 702 slides in the opposite direction under the action of the fixed sliding ring 405, so that the limiting piston tube 702 and the cooling water pipe The sealing structure of 700 is unlocked, so that the water flow in the sliding piston tube 606 enters the cooling water pipe 700, and cooperates with the rotating gear 703 to engage with the spiral sleeve 100, so that the water flow in the cooling water pipe 700 cooperates with the continuous rotation of the cooling water pipe 700 and is sprayed out through the water flow holes on the cooling water pipe 700, thereby cooling the spiral sleeve 100 and the flexible sealing sleeve 300, so that the temperature rise caused by friction between the flexible sealing sleeve 300 and the spiral sleeve 100 is reduced, thereby extending the service life of the machine.

[0053] As the water flow continuously cools down the spiral sleeve 100 and the flexible sealing sleeve 300, when the temperature of the spiral sleeve 100 drops, the heat transfer extrusion piston 501 rubbing against the spiral sleeve 100 is affected by the temperature of the spiral sleeve 100, and the temperature transferred to the transmission air chamber 500 drops, and then the air pressure in the transmission air chamber 500 decreases, causing the driven wedge piston 503 to slide in the opposite direction, thereby resetting the sliding wedge shaft 602 and the wedge piston column 601, and then closing the water flow input in the cooling water pipe 600. When the water in the cooling water pipe 700 flows out, the cooling water pipe 700, the limit slip ring 701 and the flexible sealing extrusion ring 605 are reset, and then the limit slip ring 701 is reset under the action of the second reset spring 607.

[0054] Before the spiral sleeve 100 rotates, due to the convex ring set in the spiral sleeve 100, the fixed piston 400 is squeezed to slide into the transmission hydraulic chamber 401, and the hydraulic oil in the transmission hydraulic chamber 401 flows to the driven hydraulic chamber 402 through the hydraulic connecting pipe 403, and then the driven piston 404 and the fixed sliding ring 405 are squeezed to slide in the direction of the spiral sleeve 100. The fixed piston 400 and the fixed sliding ring 405 cooperate with each other, so that the flexible sealing sleeve 300 and the spiral sleeve 100 are kept fixed inside the spiral sleeve 100, and the transmission air chamber 500 is set. The limiting extrusion spring 502 makes the heat transfer extrusion piston 501 always slidably connected with the spiral sleeve 100, so that when the heat transfer extrusion piston 501 transfers heat to the transmission air chamber 500, the heat transfer extrusion piston 501 keeps the flexible sealing sleeve 300 and the spiral sleeve 100 fixed on the outside of the spiral sleeve 100, so that the relative positions of the spiral sleeve 100 and the flexible sealing sleeve 300 are kept fixed, and the heat transfer extrusion piston 501 transfers the temperature of the spiral sleeve 100 so that the cooling water pipe 700 cools the inner surface of the spiral sleeve 100, thereby increasing the service life of the machine.

[0055] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0057] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wet ball mill feed sealing structure, comprising a spiral sleeve (100), characterized in that: A flexible sealing sleeve (300) is rotatably connected inside the spiral sleeve (100), one end of the flexible sealing sleeve (300) away from the spiral sleeve (100) is fixedly connected to a feed pipe (200), a fixed sliding ring (405) is slidably connected inside the flexible sealing sleeve (300), a side of the flexible sealing sleeve (300) away from the fixed sliding ring (405) is slidably connected to a flexible tight extrusion ring (605), and a side of the flexible tight extrusion ring (605) away from the feed pipe (200) is fixedly connected to a cooling water pipe (700); A limiting slip ring (701) is slidably connected on the outer contour of the cooling water pipe (700), a second return spring (607) is arranged between the limiting slip ring (701) and the flexible tight extrusion ring (605), a limiting piston tube (702) is slidably connected running through the cooling water pipe (700), a second limiting tension spring (704) is arranged between the limiting piston tube (702) and the cooling water pipe (700), a rotating gear (703) is fixedly connected on the outer contour of the cooling water pipe (700), the rotating gear (703) is slidably connected to the limiting slip ring (701), an inner gear ring is arranged on the inner contour of the spiral sleeve (100), and the inner gear ring of the spiral sleeve (100) is meshed with the rotating gear (703).

2. The wet ball mill feed sealing structure according to claim 1, characterized in that: A limiting gasket (406) is fixedly connected to the fixed sliding ring (405); the limiting gasket (406) and the limiting sliding ring (701) have the same cross-sectional projection size; the end of the limiting sliding ring (701) close to the fixed sliding ring (405) is longer than the cooling water pipe (700); the length of the limiting sliding ring (701) longer than the cooling water pipe (700) is the same as the length of the limiting gasket (406).

3. The wet ball mill feed sealing structure according to claim 2, characterized in that: The length of the cooling water pipe (700) is the same as the inner cross-sectional length of the spiral sleeve (100).

4. The wet ball mill feed sealing structure according to claim 1, characterized in that: A sliding piston tube (606) is fixedly connected to the side of the flexible tight extrusion ring (605) away from the spiral sleeve (100), and the sliding piston tube (606) is slidably connected to the flexible sealing sleeve (300). The sliding piston tube (606) is slidably connected to a cooling water pipe (600), and the cooling water pipe (600) is slidably connected to a wedge-shaped piston column (601). A first limit tension spring (604) is provided between the wedge-shaped piston column (601) and the cooling water pipe (600). A sliding wedge-shaped shaft (602) is slidably connected to the cooling water pipe (600), and a first return spring (603) is provided between the sliding wedge-shaped shaft (602) and the cooling water pipe (600). The sliding wedge-shaped shaft (602) and the wedge-shaped piston column (601) are wedge-matched, and one end of the cooling water pipe (600) away from the flexible sealing sleeve (300) is connected to the water pipe.

5. The wet ball mill feed seal structure according to claim 4, characterized in that: The flexible sealing sleeve (300) is fixedly connected to a transmission air chamber (500) outside the cooling water pipe (600), a heat transfer extrusion piston (501) is slidably connected inside the transmission air chamber (500), the heat transfer extrusion piston (501) is slidably connected to the spiral sleeve (100), and a driven wedge piston (503) is slidably connected to one end of the transmission air chamber (500) away from the heat transfer extrusion piston (501), and the driven wedge piston (503) is wedge-matched with the sliding wedge shaft (602).

6. The wet ball mill feed seal structure according to claim 5, characterized in that: A gas circulation pipeline is provided inside the heat transfer extrusion piston (501), and the heat transfer extrusion piston (501) is made of a material with fast heat transfer.

7. The wet ball mill feed seal structure according to claim 5, characterized in that: A limited extrusion spring (502) is provided between the heat transfer extrusion piston (501) and the transmission air chamber (500), and the heat transfer extrusion piston (501) is slidably connected to the flexible sealing sleeve (300).

8. The wet ball mill feed seal structure according to claim 7, characterized in that: The flexible sealing sleeve (300) is fixedly connected to a transmission hydraulic chamber (401) at one end in the spiral sleeve (100), a fixed piston (400) is slidably connected in the transmission hydraulic chamber (401), the fixed piston (400) is slidably connected to the spiral sleeve (100), a driven hydraulic chamber (402) is fixedly connected to the lower side of the transmission hydraulic chamber (401), a driven piston (404) is slidably connected in the driven hydraulic chamber (402), and the driven piston (404) is fixedly connected to a fixed sliding ring (405).

9. The wet ball mill feed sealing structure according to claim 8, characterized in that: A hydraulic connection pipe (403) is provided between the transmission hydraulic chamber (401) and the driven hydraulic chamber (402) for connecting the transmission hydraulic chamber (401) and the driven hydraulic chamber (402).

10. The wet ball mill feed sealing structure according to claim 8, characterized in that: A convex ring is arranged on the inner side of the spiral sleeve (100) relative to the fixed piston (400).

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