Grinding machine for accelerator production

Abstract

The utility model relates to the technical field of accelerator processing, in particular to a grinding machine for accelerator production, which comprises a tank body, a primary grinding guide table is arranged in a feed port in the tank body, and a primary grinding structure is matched with the outer edge of the primary grinding guide table. The primary grinding guide table comprises a conical grinding table and a rotating part, and the conical grinding table coaxially rotates along the tank body through the connected rotating part. The primary grinding structure comprises a rolling ball which is in rolling contact with the conical lower portion of the conical grinding table. A fine grinding structure is arranged below the conical grinding table and comprises a grinding cylinder, the inner cylinder diameter of the grinding cylinder is larger than the bottom conical surface diameter of the conical grinding table, and a plurality of grinding balls are arranged in the grinding cylinder. The grinding cylinder is coaxially and fixedly connected with the rotating part, a filter screen is arranged in the center of the interior of the grinding cylinder, and a discharge port in the tank body is formed below the filter screen. And a cooling structure is arranged outside the tank body and corresponds to the fine grinding structure in the tank body in position. According to the utility model, the technical problems of rapid grinding and graded grinding of the accelerator are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of accelerator processing technology, specifically, relates to a grinding machine for accelerator production. BACKGROUND

[0002] Accelerator (powder) is a kind of solid particles made of cement, minerals and chemical reagents etc., usually presents as white or gray powder material, and the particles are fine and easy to mix uniformly.It is mainly used to accelerate and improve the hardening process of concrete, and is an important building material additive.

[0003] The existing accelerator needs to be mixed with concrete for use, and if the particle diameter of the accelerator is large, the mixing contact area of the accelerator and the concrete will be reduced, resulting in reduced accelerator effect.

[0004] The patent with the patent name "concrete accelerator grinding device" and the announcement number CN221832497U has been disclosed, which includes a grinding cylinder, an inner liner cylinder is arranged in the grinding cylinder, a stirring rod is arranged in the inner liner cylinder, a hole plate is arranged at the bottom of the stirring rod, a plurality of grinding balls are placed on the top of the hole plate, a plurality of guide grooves are arranged in the inner liner cylinder, a discharge hole is formed in the grinding cylinder, and a box body is arranged at the bottom, a plurality of vertical rods are connected to the hole plate, and a gap is arranged between the bottom of the hole plate and the bottom of the grinding cylinder.The utility model discloses a ball mill, and guide grooves are arranged on the inner wall of the grinding cylinder, so that the material is quickly broken and ground, and the grinding efficiency is improved.

[0005] Although the utility model can improve the grinding efficiency of the accelerator, different particle sizes of the accelerator are located in the same grinding position during the grinding process, so that a part of the accelerator is ground into powder and screened out, and the other part of the accelerator with large diameter is continuously ground, so that it is difficult for the workers to supplement new accelerator raw materials for processing. UTILITY MODEL CONTENTS

[0006] The purpose of the present application is to provide a grinding machine for accelerator production, which solves the technical problems of rapid grinding and grading of accelerator.

[0007] In order to solve the above technical problems, the scheme adopted by the present application is as follows:

[0008] A grinding machine for accelerator production, comprising a tank body, an initial grinding guide table is arranged in the feed inlet of the tank body, and an initial grinding structure is matched with the outer edge of the initial grinding guide table.

[0009] Preferably, the initial grinding guide table comprises a conical grinding table and a rotating part, and the conical grinding table rotates coaxially along the tank body through the connecting rotating part.

[0010] Preferably, the primary grinding structure comprises rolling balls in rolling contact with the lower conical portion of the conical grinding table.

[0011] Preferably, the lower portion of the conical grinding table is provided with a fine grinding structure comprising a grinding cylinder having an inner diameter greater than the diameter of the bottom conical surface of the conical grinding table, and a plurality of grinding balls are arranged in the grinding cylinder.

[0012] Preferably, the grinding cylinder is coaxially fixedly connected to the rotating member, a filter screen is arranged in the center of the cylinder, and the lower portion of the filter screen is a discharge port in the tank.

[0013] Preferably, the outer portion of the tank is provided with a cooling structure corresponding to the position of the fine grinding structure in the tank.

[0014] Preferably, the primary grinding structure further comprises a clamping groove ring, an annular clamping groove is arranged on the inner side of the clamping groove ring, a plurality of rolling balls are clamped in the clamping groove, and the plurality of rolling balls are uniformly arranged and in contact with each other.

[0015] Preferably, the top of the clamping groove ring is fixedly connected to the displacement end of the displacement assembly, and the fixed end of the displacement assembly is fixed in the tank.

[0016] Preferably, the fine grinding structure further comprises a cylinder fixedly arranged on the side wall and bottom surface of the grinding cylinder, and the cylinder is arranged perpendicular to the connected wall surface.

[0017] Preferably, a plurality of cylinders are arranged in the grinding cylinder, and the distance between adjacent cylinders is greater than the diameter of the grinding ball.

[0018] Preferably, the filter screen is in the shape of a conical structure, the tip of the conical structure is located at the center of the grinding cylinder, and the tip of the conical structure is higher than the conical bottom surface of the conical structure.

[0019] Preferably, the cooling structure comprises a temperature insulation sleeve, the temperature insulation sleeve is sleeved on the outer wall of the main tank in the tank, and the tank wall of the main tank is a heat conducting structure.

[0020] Preferably, a water pipe is arranged between the temperature insulation sleeve and the outer wall of the main tank, the water inlet and the water outlet of the water pipe are respectively connected to a pump body, the pump body is connected to an external water tank, and the pump body is arranged outside the temperature insulation sleeve.

[0021] The technical scheme has at least the following advantages and beneficial effects:

[0022] In the utility model, the primary grinding structure (communication primary grinding guide table) is arranged to screen the rapid hardening agent agglomerates entering the device, the smaller particles are preferentially subjected to the lower fine grinding structure, and the larger particles of the rapid hardening agent are intercepted and need to be further ground and broken before fine grinding, so that the size range of the rapid hardening agent in the fine grinding is close, the grinding efficiency is improved, and the grinding of the rapid hardening agent is completed synchronously.

[0023] The utility model discloses a filter screen is set up in the center of the fine grinding structure, and the powder after grinding is screened out, and the big particle accelerator is prevented from being blocked.

[0024] The utility model discloses a cooling structure is set up outside the fine grinding structure, when the grinding temperature is too high, the cooling structure can cool down, and the heat of grinding position is absorbed, thereby avoiding other reactions of the accelerator due to high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the sectional structure schematic drawing of the utility model.

[0026] Figure 2 It is the structure schematic drawing of the utility model.

[0027] Figure 3 It is the sectional structure schematic drawing of the primary grinding structure in the utility model.

[0028] Figure 4 It is the sectional structure schematic drawing of the displacement assembly in the utility model.

[0029] Figure 5 It is the sectional structure schematic drawing of the fine grinding structure in the utility model.

[0030] In the drawing: 1 - jar body, 101 - main body jar, 102 - feed inlet, 103 - discharge port, 2 - primary grinding guide platform, 201 - conical grinding platform, 202 - connecting shaft, 203 - motor, 204 - fixed plate, 3 - primary grinding structure, 301 - clamping groove ring, 302 - ball, 303 - displacement assembly, 4 - fine grinding structure, 401 - grinding cylinder, 402 - cylinder, 5 - grinding ball, 6 - filter screen, 7 - cooling structure, 701 - temperature insulation sleeve, 702 - water pipe, 703 - pump body. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0032] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. The terms "center", "upper", "lower", "inner", "outer", and the like, which indicate the orientation or position relationship based on the positions shown in the drawings or the usual positions of the products of the application, are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. It should also be noted that unless otherwise specified and limited, the terms "provided", "installed", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0033] Embodiment

[0034] Please refer to Figures 1-5 The utility model provides a grinding machine for accelerator production, including jar body 1, primary grinding guide platform 2, primary grinding structure 3, fine grinding structure 4, grinding ball 5, filter screen 6, cooling structure 7.

[0035] Further, the accelerator raw material is transported into the jar body 1 and ground, and the jar body 1 comprises a main jar 101, a feeding port 102 and a discharging port 103.

[0036] The main jar 101 is provided with the feeding port 102 at the top, and the feeding port 102 is provided with the primary grinding guide platform 2. The primary grinding guide platform 2 is matched with the primary grinding structure 3 along the outer edge. The primary grinding guide platform 2 and the primary grinding structure 3 cooperate to preliminarily grind the accelerator raw material, grind and crush the larger lumps in the accelerator raw material into small particles, and facilitate further grinding into smaller accelerator powder.

[0037] The primary grinding guide platform 2 comprises a conical grinding table and a rotating part, and the rotating part is fixed to the coaxial bottom of the conical grinding table. The rotating part rotates coaxially along the jar body 1 and drives the conical grinding table to rotate.

[0038] The primary grinding structure 3 comprises a clamping groove ring 301 and a rolling ball 302.

[0039] The clamping groove ring 301 is sleeved on the inner wall of the main body tank 101 and surrounds the upper part of the conical grinding table. The inner side of the clamping groove ring 301 is provided with an annular clamping groove. A plurality of rolling balls 302 are clamped in the clamping groove. The plurality of rolling balls 302 are uniformly arranged and abut and contact each other and can freely roll. The rolling balls 302 are in rolling contact with the conical surface of the conical grinding table.

[0040] Preferably, when the larger agglomerated accelerator is directly ground into powder, the agglomerated grinding speed is slow, and the agglomerated accelerator is mixed in the already ground powder, affecting the overall grinding efficiency. Therefore, the primary grinding structure 3 (together with the primary grinding guide table 2) is arranged to allow only the accelerator powder and small particles to pass between the rolling balls 302, and to intercept the larger agglomerated accelerator. The conical grinding table rotates to drive the rolling balls 302 in contact with it to roll, so that the agglomerates are gradually broken into small particles under the rolling of adjacent rolling balls 302, facilitating the subsequent grinding process, so that the size range of the accelerator is relatively uniform, and the time for grinding into powder is close, thereby improving the efficiency of grinding the accelerator raw material into powder.

[0041] Further, after the accelerator passes through the primary grinding structure 3 (together with the primary grinding guide table 2), it will enter the lower fine grinding structure 4 for thorough grinding to generate accelerator powder.

[0042] The fine grinding structure 4 includes a grinding cylinder 401 and a cylinder 402.

[0043] The outer wall of the grinding cylinder 401 is fixed to the inner wall of the main body tank 101. A plurality of grinding balls 5 are arranged in the grinding cylinder 401. The grinding cylinder 401 is coaxially fixedly connected with the rotating component and is driven to rotate by the rotating assembly. The rotation of the grinding cylinder 401 drives the plurality of grinding balls 5 in the cylinder to roll and collide in the cylinder, thereby ball-milling the accelerator in the cylinder.

[0044] The inner cylinder diameter of the grinding cylinder 401 is greater than the bottom conical surface diameter of the conical grinding table. The outer cylinder wall of the grinding cylinder 401 is in abutment with the inner wall of the main body tank 101, and the top cylinder wall is chamfered, so that the accelerator guided downward by the conical surface of the conical grinding table falls completely into the grinding cylinder 401 and is slid into the cylinder by the chamfered cylinder wall of the grinding cylinder 401 for ball-milling.

[0045] Further, a filter screen 6 is fixedly arranged at the center of the bottom of the grinding cylinder 401. The lower part of the filter screen 6 is the discharge port 103 in the tank body 1, which is responsible for screening the accelerator ball-milled into qualified powder into the discharge port 103.

[0046] The filter screen 6 is in the shape of a conical structure, the tip of the conical structure is located at the center of the grinding cylinder 401, and the tip of the conical structure is higher than the conical bottom surface of the conical structure.

[0047] Preferably, when ball milling, the rolling ball 302 carries the accelerator particles and powder together onto the filter screen 6, the accelerator powder will fall into the discharge port 103 through the filter screen 6, and the rolling head and accelerator particles will roll away from the filter screen 6 through the inclined conical surface and away from the center of the grinding cylinder 401 under the centrifugal force of the grinding cylinder 401, and continue to ball mill at the periphery of the grinding cylinder 401 until the ground accelerator powder passes through the filter screen 6, so as to realize the rapid separation of the accelerator powder and particles at the filter screen 6, and there will be no accelerator particles accumulated on the filter screen 6 to block the screen holes and reduce the screening efficiency.

[0048] Further, the outer part of the tank 1 is provided with a cooling structure 7 corresponding to the position of the fine grinding structure 4 in the tank 1, which controls the temperature of the position of the fine grinding structure 4.

[0049] Preferably, because the accelerator is used as an additive and catalyst in concrete construction, friction will generate a lot of heat during grinding of the accelerator raw materials, which will cause a large change in temperature and cause the accelerator to react. Therefore, it is necessary to ensure that the change in temperature during grinding is small. By setting the cooling structure 7 outside the fine grinding structure 4, when the temperature in the fine grinding structure 4 is too high, the cooling structure 7 cools down through the internal cooling components, absorbs the heat in the fine grinding structure 4, and maintains the internal temperature of the fine grinding structure 4 constant.

[0050] Please refer to Figure 3 and Figure 4 In this embodiment, the top of the clamping groove ring 301 is fixedly connected with a displacement assembly 303, which is fixed in the tank 1 and is responsible for driving the vertical displacement of the clamping groove ring 301, so as to change the distance between the rolling ball 302 on the clamping groove ring 301 and the conical grinding table, thereby adjusting the accelerator particles of different sizes into the subsequent fine grinding structure 4.

[0051] Specifically, the displacement assembly 303 is preferably an electric cylinder, the displacement rod of which is connected to the top of the clamping groove ring 301, and the cylinder body of the electric cylinder is fixed to the inner wall of the main tank 101.

[0052] Please refer to Figure 3 and Figure 5 In this embodiment, the fine grinding structure 4 further includes a cylinder 402 fixedly arranged on the side wall and bottom surface in the grinding cylinder 401, which is arranged perpendicular to the connected wall surface, and a plurality of cylinders 402 are arranged in the grinding cylinder 401, and the distance between adjacent cylinders 402 is greater than the diameter of the grinding ball 5.

[0053] When the grinding ball 5 rolls in the grinding cylinder 401, it will be further collided by the cylinders 402 in different positions, so as to improve the collision speed and frequency of the grinding ball 5, improve the ball milling quality, and the grinding ball 5 can also roll into the adjacent cylinders 402, so that the situation that part of the accelerator agglomerates and is stuck between the cylinders 402 and cannot be ground by the grinding ball 5 is avoided.

[0054] Please refer to Figure 3 In the embodiment, the rotating assembly comprises a connecting shaft 202, a motor 203 and a fixing plate 204.

[0055] Specifically, the conical bottom surface of the conical grinding table is coaxially fixed with the top end of the connecting shaft 202, the bottom of the connecting shaft 202 penetrates through the grinding cylinder 401 and is connected with the driving shaft of the motor 203, the motor 203 is fixed on the fixing plate 204, the fixing plate 204 is fixed in the main body tank 101, and the motor 203 drives the conical grinding table and the grinding cylinder 401 to rotate.

[0056] Please refer to Figure 1 and Figure 3 In the embodiment, the cooling structure 7 comprises a temperature insulation sleeve 701, a water pipe 702 and a pump body 703.

[0057] The temperature insulation sleeve 701 is sleeved on the outer wall of the main body tank 101 in the tank body 1, the tank wall of the main body tank 101 is of a heat conduction structure and is easy to conduct the heat generated by the ball milling in the grinding cylinder 401 to the temperature insulation sleeve 701; the water pipe 702 is arranged between the temperature insulation sleeve 701 and the outer wall of the main body tank 101, the water inlet and the water outlet of the water pipe 702 are respectively connected with the pump body 703, the water flow in the water pipe 702 flows, the pump body 703 is connected with an external water tank, and the pump body 703 is arranged outside the temperature insulation sleeve 701.

[0058] The tank wall of the main body tank 101 is provided with a temperature sensor (not shown in the figure), when the temperature is too high during the ball milling, the temperature sensor sends a signal to the water pump, the water pump works, so that the water flow in the water pipe 702 flows, the water flow of the external water tank is input into the temperature insulation sleeve 701, the heat generated by the ball milling is absorbed, the temperature is reduced, then the water pump outputs the water flow with the increased temperature, inputs the water flow with a lower temperature, continuously cools the fine grinding mechanism, until the temperature is reduced to a safe temperature range, the temperature sensor stops sending the signal, the water pump stops, and the cooling stops.

[0059] So far, the embodiments of the utility model have been described in detail. In order to avoid shielding the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions of the utility model herein according to the above description, and the scope of the utility model is defined by the appended claims.

Claims

1. A grinding machine for accelerator production, comprising a tank body (1), characterized in that, The initial grinding guide table (2) is arranged in the feed inlet (102) of the tank body (1), and an initial grinding structure (3) is matched with the outer side of the initial grinding guide table (2); The initial grinding guide table (2) comprises a conical grinding table and a rotating part, and the conical grinding table rotates coaxially along the tank body (1) through the connecting rotating part; The initial grinding structure (3) comprises a rolling ball (302), and the rolling ball (302) is in rolling contact with the conical lower part of the conical grinding table; A fine grinding structure (4) is arranged below the conical grinding table, the fine grinding structure (4) comprises a grinding cylinder (401), the inner cylinder diameter of the grinding cylinder (401) is greater than the bottom conical surface diameter of the conical grinding table, and a plurality of grinding balls (5) are arranged in the grinding cylinder (401); The grinding cylinder (401) is fixedly connected coaxially with the rotating part, a filter screen (6) is arranged in the center of the cylinder of the grinding cylinder (401), and the lower part of the filter screen (6) is the discharge port (103) in the tank body (1); A cooling structure (7) is arranged outside the tank body (1) and corresponds to the position of the fine grinding structure (4) in the tank body (1).

2. A grinding machine for the production of accelerators as claimed in claim 1, characterized in that The initial grinding structure (3) further comprises a clamping groove ring (301), an annular clamping groove is arranged on the inner side of the clamping groove ring (301), a plurality of rolling balls (302) are clamped in the clamping groove, and the plurality of rolling balls (302) are uniformly arranged and in contact with each other.

3. A grinding machine for the production of accelerators according to claim 2, characterized in that, The top of the clamping groove ring (301) is fixedly connected with the displacement end of a displacement assembly (303), and the fixed end of the displacement assembly (303) is fixed in the tank body (1).

4. A grinding machine for the production of accelerators as claimed in claim 1, characterized in that, The fine grinding structure (4) further comprises a cylinder (402), which is fixedly arranged on the side wall and bottom surface in the grinding cylinder (401) and is arranged perpendicularly to the connected wall surface; A plurality of cylinders (402) are arranged in the grinding cylinder (401), and the distance between adjacent cylinders (402) is greater than the diameter of the grinding ball (5).

5. A grinding machine for the production of accelerators as claimed in claim 1, characterized in that, The filter screen (6) is in the shape of a conical structure, the tip of the conical structure is located at the center of the grinding cylinder (401), and the tip of the conical structure is higher than the conical bottom surface of the conical structure.

6. A grinding machine for the production of accelerators as claimed in claim 1, characterized in that, The cooling structure (7) comprises a heat insulation sleeve (701), the heat insulation sleeve (701) is sleeved on the outer wall of the main tank (101) in the tank body (1), and the tank wall of the main tank (101) is in a heat conduction structure; A water pipe (702) is arranged between the heat insulation sleeve (701) and the outer wall of the main tank (101), the water inlet and the water outlet of the water pipe (702) are connected with a pump body (703), the pump body (703) is connected with an external water tank, and the pump body (703) is arranged outside the heat insulation sleeve (701).

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