A flour mill with water cooling mechanism

Abstract

The application relates to the field of flour mills, in particular to a flour mill with a water cooling mechanism, which comprises a water cooling circulation unit for circulating and heat exchanging treatment of cooling water, a water inlet pipe is fixedly connected to the water outlet of the water cooling circulation unit; a water flow proportional valve for controlling the water flow, both ends of the water flow proportional valve are connected with the water inlet pipe, a No. 1 rotary joint is rotatably installed on the top of the water inlet pipe; and a flour milling assembly for milling materials into powder and cooling the rollers, when the cooling water flow rate becomes fast and the cooling range becomes small, a large amount of heat is generated in the contact area between the two milling rollers and the part in contact with the powder during the milling process, and the heat is unevenly distributed. The fast water flow rate can rapidly take away the heat of the local high-temperature area, preventing the local overheating of the roller surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flour mill, in particular to a flour mill with water cooling mechanism. BACKGROUND

[0002] There are various kinds of flour milling equipment in the market, and most of the flour milling equipment adopts mechanical grinding method to process flour, but a large amount of heat is generated in the grinding process, and the high heat sometimes leads to poor grinding effect due to the material properties of the ground material, and affects the wear resistance of the grinding disc.

[0003] However, for the processing of high-grade flour, different flours have different thermal conductivity and specific heat capacity, such as wheat flour, corn flour and rice flour, and their thermal conductivities are different. If the temperature of the water-cooled grinding roller remains unchanged, some flours with poor thermal conductivity or prone to physical changes at low temperatures will have the following problems: 1. uneven cooling; 2. increased equipment wear: flours with poor thermal conductivity may become more brittle and hard at low temperatures, increasing the difficulty of grinding. SUMMARY

[0004] The present application provides a flour mill with water cooling mechanism to solve the problems in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a flour mill with water cooling mechanism, comprising a water cooling circulation unit for circulating and heat exchanging the cooling water, and an inlet pipe fixedly connected to the water outlet of the water cooling circulation unit;

[0006] a water flow proportional valve for controlling the water flow, both ends of the water flow proportional valve being connected to the inlet pipe, and a No. 1 rotary joint being rotatably installed on the top of the inlet pipe;

[0007] a flour milling assembly for grinding the material into powder and cooling the roller, the flour milling assembly being connected to the No. 1 rotary joint;

[0008] a No. 2 rotary joint being provided at the end of the flour milling assembly away from the No. 1 rotary joint, an outlet pipe being rotatably installed at the bottom of the No. 2 rotary joint, and the end of the outlet pipe away from the No. 2 rotary joint being connected to the water inlet of the water cooling circulation unit.

[0009] Preferably, the flour milling assembly comprises an outer shell, both ends of the outer shell being respectively sleeved with the No. 1 rotary joint and the No. 2 rotary joint, a feeding port being formed at the top of the outer shell, and a discharging port being formed at the bottom of the outer shell.

[0010] Preferably, the bottom of the shell cavity is fixedly provided with a supporting roller frame body, both ends of the supporting roller frame body are rotatably provided with rotating shafts, the number of the rotating shafts is two, and the outer sides of the rotating shafts are fixedly connected with a first grinding roller and a second grinding roller.

[0011] Preferably, the outer side of the supporting roller frame body is connected with a servo motor through a frame, the output end of the servo motor is connected with a first belt pulley, the outer side of the first belt pulley is drivingly connected with a belt, and the inner side of the belt away from the first belt pulley is drivingly connected with a second belt pulley.

[0012] Preferably, the outer side of the belt is drivingly connected with a third belt pulley, the third belt pulley and the second belt pulley are reversely and downwardly rotatable at the center, and the centers of the third belt pulley and the second belt pulley are fixedly connected with the rotating shafts.

[0013] Preferably, the outer end surface of the first grinding roller is fixedly connected with a short connecting pipe, one end of the short connecting pipe away from the first grinding roller is fixedly connected with a sleeve connecting pipe, one side of the sleeve connecting pipe away from the short connecting pipe is fixedly connected with a surge pipe, and one end of the surge pipe away from the sleeve connecting pipe is fixedly connected with the second rotating joint.

[0014] The sleeve connecting pipe is used for sequentially passing water in the first grinding roller and the second grinding roller through the sleeve connecting pipe, the surge pipe and the second rotating joint, and then into the water cooling circulation unit.

[0015] Preferably, the grinding assembly further comprises a connecting pipe, the outer end surface of the connecting pipe is fixedly connected with the first rotating joint, and one end of the connecting pipe away from the first rotating joint is rotatably connected with a hollow pipe.

[0016] A flow dividing head is used for dividing the cooling water into three parts and is fixedly connected in the hollow pipe, and the cross section end of the flow dividing head is fixedly connected with the rotating shaft.

[0017] The outer sides of the rotating shaft and the hollow pipe are fixedly connected with three-way pipes, and the three-way pipes are in communication with the hollow pipe.

[0018] Preferably, the inner side of the first grinding roller is fixedly provided with an electric push rod, and the output end of the electric push rod is fixedly connected with a cooling half pipe.

[0019] The inner side of the first grinding roller is fixedly connected with a fixed strip, one end of the fixed strip away from the first grinding roller is fixedly connected with an embedded ring, and both ends of the embedded ring are embeddedly matched with the cooling half pipe.

[0020] The space surrounded by the embedded ring and the cooling half pipe is used for controlling the flow of the cooling water and the range of thermal contact.

[0021] Preferably, the outer end of the cooling half-pipe is extruded to be matched with a flexible leak-proof sleeve, the flexible leak-proof sleeve is fastened and connected to the outer side of the first grinding roller by bolts, the outer end surface of the cooling half-pipe is fixedly connected with a conical bellows, and the end of the conical bellows away from the cooling half-pipe is fixedly connected with the three-way pipe.

[0022] The inside of the first grinding roller is fixedly installed with a through pipe, the outer end surface of the through pipe is connected with the three-way pipe, and the end of the through pipe away from the three-way pipe is connected with the center of the first grinding roller.

[0023] Preferably, the inside of the through pipe is fixedly connected with an inner fixed plate, the outer side of the inner fixed plate is inserted with a matching plug, the outer side of the matching plug is fixedly connected with a sliding ring, the sliding ring is slidably matched in the inside of the through pipe, the surface of the through pipe is provided with a straight groove, a extension rod is slidably matched in the straight groove, one end of the extension rod is fixedly connected with the sliding ring, the two sides of the extension rod are symmetrically connected with leak-proof folded sheets, and the end of the leak-proof folded sheets away from the extension rod is fixedly connected with the through pipe.

[0024] The inside of the first grinding roller is provided with an inner groove, the inner groove is slidably matched with a sliding and folding rod, one end of the sliding and folding rod is fixedly connected with the cooling half-pipe, and the end of the sliding and folding rod away from the cooling half-pipe is fixedly connected with the extension rod.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The inner diameter of the water inlet end of the conical bellows is greater than the inner diameter of the water outlet end, because the inner diameter of the inner cavity surrounded by the cooling half-pipe and the matching ring is smaller than the inner diameter of the water inlet end of the conical bellows, so that the conical bellows in this state functions as a tapered pipe installed between the thick pipe and the thin pipe, so that the water flow can gradually transition, avoiding sudden changes in pipe diameter, and reducing the damage to the pipeline caused by the large water flow impact and resistance at the junction of the thick pipe and the thin pipe.

[0027] 2. When the cooling water flow rate is fast and the cooling range is small, a large amount of heat is generated in the contact area between the two grinding rollers and the part in contact with the powder during the grinding process, and the heat is not uniformly distributed. Fast water flow can quickly remove the heat in these local high-temperature areas and prevent local overheating of the roller surface.

[0028] 3. When the cooling water flow rate is slow and the cooling range is large, because different powders have different thermal conductivity and specific heat capacity. For some powders with poor thermal conductivity or prone to physical changes at lower temperatures, using a water flow with a large cooling range and slow flow rate can provide a more gentle cooling environment, avoiding problems such as caking and deterioration of the powder due to rapid cooling, and helping to maintain the characteristics and quality of the powder.

[0029] 4. The water flow rate is slow but the cooling range is large, and the water flow rate is fast but the cooling range is small, which has the following effects: A, additional sensors can be used to adapt to changes in working conditions; B, optimize cooling effect and energy consumption; C, the switchable cooling method can better cope with various unexpected situations, such as local overheating caused by equipment failure, temperature fluctuations caused by uneven powder supply, etc. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the external structure of a flour mill with a water cooling mechanism.

[0031] Figure 2 is a schematic diagram of the structure of the flour mill assembly without the end cap.

[0032] Figure 3 is a schematic diagram of the internal structure of the flour mill assembly.

[0033] Figure 4 is a schematic diagram of the side view of the internal structure.

[0034] Figure 5 is a schematic diagram of the internal structure without the pulley.

[0035] Figure 6 is a schematic diagram of the structure of the grinding roller.

[0036] Figure 7 is a schematic diagram of the structure of the grinding roller. Figure 6

[0037] is a schematic diagram of the cross-sectional structure of the front end of the grinding roller. Figure 8

[0038] is a schematic diagram of the oblique cross-sectional structure of the front end of the grinding roller. Figure 9

[0039] is a schematic diagram of the structure of the internal structure of the through pipe. Figure 10 Figure 9 is a schematic diagram of the structure of the internal structure of the through pipe.

[0040] Figure 11

[0041] Figure 12 ​​The schematic diagram of the cross section structure of the grinding roller of the application.

[0042] Figure 13 The schematic diagram of the cross section structure of the grinding roller of the application.

[0043] Figure 14 The schematic diagram of the cross section structure of the grinding roller of the application.

[0044] In the figure: 1, water cooling circulation unit; 2, water flow proportional valve; 3, No. 1 rotary joint; 4, grinding assembly; 5, No. 2 rotary joint; 6, water inlet pipe; 7, water outlet pipe; 41, outer shell; 42, support roller frame body; 43, rotating shaft; 44, No. 1 grinding roller; 45, No. 2 grinding roller; 46, servo motor; 47, No. 1 belt pulley; 48, belt; 49, No. 2 belt pulley; 40, No. 3 belt pulley; 401, short connecting pipe; 402, sleeve connecting pipe; 403, gushing pipe; 404, adapter pipe; 405, hollow pipe; 406, flow dividing head; 407, three-way pipe; 408, conical corrugated pipe; 409, flexible leakproof sleeve; 400, inner fixing plate; 51, sliding ring; 52, extension rod; 53, embedded block; 54, leakproof folding piece; 55, inner groove; 56, sliding folding rod; 57, electric push rod; 58, cooling half pipe; 59, fixing strip; 50, embedded ring; 501, through pipe. DETAILED DESCRIPTION

[0045] Hereinafter, the application will be further described in conjunction with the drawings and specific embodiments. It should be noted that, under the premise of no conflict, the following described embodiments or technical features can be combined to form new embodiments. It is known that the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0046] Please refer to Figures 1 to 14 , the application provides a technical solution: as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , it comprises a water cooling circulation unit 1 for circulating and heat exchanging the cooling water, and a water inlet pipe 6 is fixedly connected to the water outlet of the water cooling circulation unit 1;

[0047] a water flow proportional valve 2 for controlling the water flow, both ends of the water flow proportional valve 2 are connected with the water inlet pipe 6, and a No. 1 rotary joint 3 is rotatably installed on the top of the water inlet pipe 6;

[0048] The mill assembly 4 is connected with the first rotary joint 3, and is used for grinding materials into powder and cooling the roller.

[0049] The second rotary joint 5 is arranged at the end of the mill assembly 4 away from the first rotary joint 3, the water outlet pipe 7 is rotatably arranged at the bottom of the second rotary joint 5, and the end of the water outlet pipe 7 away from the second rotary joint 5 is connected with the water inlet of the water cooling circulating unit 1.

[0050] The mill assembly 4 comprises an outer shell 41, the two ends of the outer shell 41 are respectively sleeved with the first rotary joint 3 and the second rotary joint 5, the top of the outer shell 41 is provided with a feeding port, and the bottom of the outer shell 41 is provided with a discharging port.

[0051] The bottom of the inner cavity of the outer shell 41 is fixedly provided with a roller support body 42, the two ends of the roller support body 42 are respectively rotatably provided with shafts 43, the number of the shafts 43 is two, and the outer sides of the shafts 43 are respectively fixedly connected with a first grinding roller 44 and a second grinding roller 45.

[0052] The outer side of the roller support body 42 is connected with a servo motor 46 through a rack, the output end of the servo motor 46 is connected with a first belt pulley 47, the outer side of the first belt pulley 47 is drivingly connected with a belt 48, and the inner side of the belt 48 away from the first belt pulley 47 is drivingly connected with a second belt pulley 49.

[0053] The outer side of the belt 48 is drivingly connected with a third belt pulley 40, the third belt pulley 40 and the second belt pulley 49 are reversely rotatable and downwardly arranged at the centers, and the centers of the third belt pulley 40 and the second belt pulley 49 are fixedly connected with the shafts 43; the first belt pulley 47 connected with the output end of the servo motor 46 is driven to rotate with the belt 48, the other side of the inner cavity of the belt 48 is drivingly connected with the second belt pulley 49, and the outer side of the belt 48 is drivingly connected with the third belt pulley 40, so that the second belt pulley 49 and the third belt pulley 40 are reversely rotatable, and the materials fed into the feeding port at the top of the outer shell 41 are ground.

[0054] The outer end surface of the first grinding roller 44 is fixedly connected with a short connecting pipe 401, the end of the short connecting pipe 401 away from the first grinding roller 44 is fixedly connected with a sleeving pipe 402, the side of the sleeving pipe 402 away from the short connecting pipe 401 is fixedly connected with a surge pipe 403, and the end of the surge pipe 403 away from the sleeving pipe 402 is fixedly connected with the second rotary joint 5.

[0055] The sleeve pipe 402 is used for sequentially passing water in the first grinding roller 44 and the second grinding roller 45 into the water-cooling circulating unit 1 through the sleeve pipe 402, the surge pipe 403 and the second rotary joint 5.

[0056] As shown in Figure 6 , Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 The flour milling assembly 4 further comprises an adapter pipe 404, an outer end surface of the adapter pipe 404 is fixedly connected with the first rotary joint 3, and a distal end of the adapter pipe 404 away from the first rotary joint 3 is rotatably connected with a hollow pipe 405;

[0057] A flow divider 406 is used for equally dividing the cooling water into three parts, and is fixedly connected in the interior of the hollow pipe 405, and a cross section end of the flow divider 406 is fixedly connected with the rotating shaft 43;

[0058] The rotating shaft 43 and the outer side of the hollow pipe 405 are both fixedly connected with a three-way pipe 407, and the three-way pipe 407 is in communication with the hollow pipe 405;

[0059] An electric push rod 57 is fixedly installed in the interior of the first grinding roller 44, and an output end of the electric push rod 57 is fixedly connected with a cooling half pipe 58;

[0060] A fixing strip 59 is fixedly connected in the interior of the first grinding roller 44, and a distal end of the fixing strip 59 away from the first grinding roller 44 is fixedly connected with an embedded ring 50, and both ends of the embedded ring 50 are embeddedly matched with the cooling half pipe 58;

[0061] A space surrounded by the embedded ring 50 and the cooling half pipe 58 is used for controlling and processing the flow of the cooling water and the range of thermal contact;

[0062] The outer end of the cooling half pipe 58 is extruded to be matched with the flexible leakproof sleeve 409, wherein the flexible leakproof sleeve 409 is flexible and permeable, and is fastened and connected to the outer side of the first grinding roller 44 by bolts. The outer end surface of the cooling half pipe 58 is fixedly connected with the conical bellows 408, and the end of the conical bellows 408 away from the cooling half pipe 58 is fixedly connected with the three-way pipe 407. By starting the water cooling circulating unit 1, the water inlet pipe 6 connected with the water outlet end will have cooling water flowing in, and then the water flow proportional valve 2 is adjusted to adjust the flow rate and flow of the water. The other end of the water inlet pipe 6 is connected with the first rotary joint 3, so that the cooling water enters the adapter pipe 404 through the first rotary joint 3, and the other end of the adapter pipe 404 is connected with the hollow pipe 405, so that the cooling water enters the hollow pipe 405. The shunt head 406 is fixedly installed in the hollow pipe 405, so that the shunt head 406 divides the cooling water into three streams and enters the three chambers of the three-way pipe 407, respectively. The inner cavity of the three-way pipe 407 is divided into three chambers by the shunt head 406, and then the cooling water in the three-way pipe 407 enters the first grinding roller 44 through the conical bellows 408. The first grinding roller 44 is provided with the cooling half pipe 58 and the embedded ring 50, respectively, so that the cooling water enters the chamber surrounded by the cooling half pipe 58 and the embedded ring 50, and cools and cools the first grinding roller 44 in the processing process. Then the cooling water is discharged from the tail end of the cooling half pipe 58 and the embedded ring 50 and enters the short pipe 401, and the other end of the short pipe 401 is connected with the sleeve pipe 402, and the other side of the sleeve pipe 402 is connected with the surge pipe 403, so that the cooling water discharged from the surge pipe 403 enters the second rotary joint 5. The other end of the second rotary joint 5 is connected with the water outlet pipe 7, and finally the cooling water flows back to the water cooling circulating unit 1.

[0063] The inner diameter of the water inlet end of the conical bellows 408 is greater than the inner diameter of the water outlet end, because the inner diameter of the chamber surrounded by the cooling half pipe 58 and the embedded ring 50 is smaller than the inner diameter of the water inlet end of the conical bellows 408 at this time, so that the conical bellows 408 in this state acts as a tapered pipe installed between a thick pipe and a thin pipe, so that the water flow can be gradually transitioned, avoiding sudden changes in pipe diameter to reduce the damage to the pipeline caused by the large water flow impact and resistance at the junction of the thick pipe and the thin pipe.

[0064] The inner part of the first grinding roller 44 is fixedly installed with a through pipe 501, the outer end surface of the through pipe 501 is connected with the three-way pipe 407, and the end of the through pipe 501 away from the three-way pipe 407 is connected with the center of the first grinding roller 44; when the fluid enters the fine pipe from the coarse pipe, according to the continuity equation and Bernoulli equation, it can be obtained that according to the continuity equation Q=vA, in the case that the fluid is incompressible and the flow is constant, the cross-sectional area A of the coarse pipe is large, and the cross-sectional area of the fine pipe is small, so the flow velocity v of the fluid will become large after entering the fine pipe; according to the Bernoulli equation p+1 / 2ρv²+ρgh=constant, when the same horizontal height h is unchanged, it can be known that the flow velocity increases, the kinetic energy of the fluid increases, in order to maintain the conservation of total energy, the pressure energy will decrease, so the pressure p of the fluid in the fine pipe will become small, therefore, the flow velocity of the cooling water in the cooling half pipe 58 and the embedded ring 50 will become fast, therefore, in the grinding process, a large amount of heat will be generated in the contact area between the two grinding rollers and the part in contact with the powder, and the heat is unevenly distributed. The fast water flow can quickly take away the heat of these local high-temperature areas, preventing the local overheating of the roller surface. For example, when grinding powder with high hardness, the pressure concentration area on the surface of the grinding roller is easy to generate high temperature, and the fast water flow can cool it in time, avoiding the softening and accelerated wear of the roller surface due to high temperature, and ensuring the normal working performance and service life of the grinding roller.

[0065] The inner fixed connection of the through pipe 501 has an inner fixed plate 400, the outer side of the inner fixed plate 400 is inserted with a embedded block 53, the outer side of the embedded block 53 is fixedly connected with a sliding ring 51, the sliding ring 51 is slidably matched in the inner part of the through pipe 501, the surface of the through pipe 501 has a straight slot hole, and the straight slot hole is slidably matched with an extension rod 52, one end of the extension rod 52 is fixedly connected with the sliding ring 51, and the both sides of the extension rod 52 are symmetrically connected with leakage-proof folding pieces 54, wherein the leakage-proof folding pieces 54 have folding property and play a role of preventing the cooling water in the through pipe 501 from overflowing outward, and the end of the leakage-proof folding pieces 54 away from the extension rod 52 is fixedly connected with the through pipe 501; the electric push rod 57 is started, so that the cooling half pipe 58 connected with the output end thereof moves to both sides, and the embedded ring 50 embedded in the inner part thereof is exposed, wherein the embedded ring 50 has certain toughness, at this time, the volume of the cavity surrounded by the cooling half pipe 58 and the embedded ring 50 becomes larger until greater than the inner diameter of the water inlet end of the conical bellows 408, therefore, when the fluid enters the thick pipe from the thin pipe, according to the continuity equation and Bernoulli equation, it can be obtained that the flow rate of the cooling water in the cooling half pipe 58 and the embedded ring 50 becomes slow and the pressure becomes large, in addition, with the movement of the cooling half pipe 58 to both sides, the slide folding rod 56 connected with the outer side thereof moves outward along the inner groove 55, wherein the other end of the slide folding rod 56 is connected with the extension rod 52, and the other end of the extension rod 52 is connected with the sliding ring 51, therefore, the extension rod 52 moves downward along the surface of the through pipe 501 with the sliding ring 51, wherein the inner side of the sliding ring 51 is connected with the embedded block 53, and at the beginning, the embedded block 53 is embedded with the inner fixed plate 400 to block the inner part of the through pipe 501, with the downward movement of the sliding ring 51 with the embedded block 53, the circular hole on the inner fixed plate 400 is opened, at this time, part of the water flow in the three-way pipe 407 enters the through pipe 501, at the same time, the water cooling circulating unit 1 also senses the starting of the electric push rod 57 and increases the inflow of the water flow, finally, the water flow also surges in the through pipe 501, thereby playing a role of increasing the amount of water cooling in the grinding roller and increasing the heat dissipation intensity.

[0066] The first grinding roller 44 is internally provided with an internally provided groove 55, the internally provided groove 55 is slidably fitted with a slide folding rod 56, one end of the slide folding rod 56 is fixedly connected with a cooling half pipe 58, and the other end of the slide folding rod 56 away from the cooling half pipe 58 is fixedly connected with the extension rod 52. The water flow is slow but the cooling range is large: A, the slow water flow can more gently cool the grinding roller under the condition of large cooling range, and reduce the thermal shock caused by rapid cooling. For some special materials or materials sensitive to thermal stress, this cooling method can protect the performance of the material, prevent cracks or microstructure changes, and prolong the service life of the grinding roller; B, different powders have different thermal conductivity and specific heat capacity. For some powders with poor thermal conductivity or prone to physical changes at low temperatures, using water flow with large cooling range and slow flow rate can provide a more gentle cooling environment, avoid caking, deterioration and other problems caused by rapid cooling of the powder, and help maintain the characteristics and quality of the powder.

[0067] In addition, the switching between the water flow with slow speed but large cooling range and the water flow with fast speed but small cooling range has the following effects: A, additional sensors can be used to adapt to changes in working conditions; B, optimize cooling effect and energy consumption; C, the switchable cooling method can better cope with various unexpected situations, such as local overheating caused by equipment failure, temperature fluctuations caused by uneven powder supply, etc.

[0068] The application in use: first, start water cooling circulating unit 1, so that the water inlet pipe 6 connected with the outflow end will have cooling water into, then adjust the water flow proportional valve 2 to adjust the flow rate and flow of water processing, wherein the other end of the water inlet pipe 6 is connected with the first rotary joint 3, so the cooling water will enter into the adapter pipe 404 through the first rotary joint 3, and the other end of the adapter pipe 404 is connected with the hollow pipe 405, so the cooling water will enter into the hollow pipe 405, wherein the hollow pipe 405 is fixedly installed with the flow divider 406, at this time the flow divider 406 will be divided into three and respectively into the three head pipe 407 of three chambers, wherein the flow divider 406 will divide the inner cavity of the three head pipe 407 into three chambers, then the cooling water in the three head pipe 407 will enter into the first grinding roller 44 through the conical bellows 408, wherein the first grinding roller 44 is respectively provided with cooling half pipe 58 and embedded ring 50, so the cooling water will enter into the chamber surrounded by cooling half pipe 58 and embedded ring 50, and the cooling water will be discharged from the tail end of the cooling half pipe 58 and embedded ring 50, and enter into the short pipe 401, and the other end of the short pipe 401 is connected with the sleeve pipe 402, and the other side of the sleeve pipe 402 is connected with the surge pipe 403, so the cooling water discharged from the surge pipe 403 will enter into the second rotary joint 5, wherein the other end of the second rotary joint 5 is connected with the water outlet pipe 7, and finally the cooling water will flow back into the water cooling circulating unit 1.

[0069] By starting the servo motor 46, the first pulley 47 connected with the output end will be driven with the belt 48, wherein the other side of the inner cavity of the belt 48 is drivingly connected with the second pulley 49, and the outer side of the belt 48 is drivingly connected with the third pulley 40, so the second pulley 49 and the third pulley 40 will be reversed and the material fed into the top inlet of the outer shell 41 will be ground.

[0070] The electric push rod 57 is started, so that the cooling half-pipe 58 connected with the output end moves to both sides, and the embedded ring 50 embedded in the inside is exposed, at this time, the volume of the cavity surrounded by the cooling half-pipe 58 and the embedded ring 50 is increased, until it is greater than the inner diameter of the water inlet end of the conical bellows 408, so when the fluid enters the thick pipe from the thin pipe, according to the continuity equation and Bernoulli equation, the cooling water in the cooling half-pipe 58 and the embedded ring 50 will slow down and the pressure will increase, in addition, as the cooling half-pipe 58 moves to both sides, the slide folding rod 56 connected with the outside will move outward along the inner groove 55, one end of the slide folding rod 56 is connected with the extension rod 52, the other end of the extension rod 52 is connected with the sliding ring 51, so the extension rod 52 will move along the surface of the through pipe 501 and take the sliding ring 51 downward, the inside of the sliding ring 51 is connected with the embedded block 53, and the embedded block 53 is embedded with the inner fixed plate 400 at the beginning, and the inside of the through pipe 501 is blocked, as the sliding ring 51 takes the embedded block 53 downward, the circular hole on the inner fixed plate 400 is opened, at this time, part of the water flow in the three-way pipe 407 will enter the through pipe 501, and the water cooling circulating unit 1 will also be sensitive to the start of the electric push rod 57, and increase the inflow of water flow, finally, the through pipe 501 will also have water flow.

[0071] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application, and those skilled in the art can make various transformations without creative labor based on the above-mentioned concepts, which are all within the protection scope of the present application.

Claims

1. A grinding mill with a water cooling mechanism, characterized in that, include: A water-cooled circulating unit is used for circulating and exchanging cooling water, wherein the outlet of the water-cooled circulating unit is fixedly connected to an inlet pipe. A water flow proportional valve is used to control the water flow rate. Both ends of the water flow proportional valve are connected to the water inlet pipe. A rotary joint is rotatably installed on the top of the water inlet pipe. A grinding assembly for grinding materials into powder and cooling the rollers, wherein the grinding assembly is connected to the first rotary joint; The grinding assembly is provided with a second rotary joint at the end away from the first rotary joint. A water outlet pipe is rotatably installed at the bottom of the second rotary joint. The end of the water outlet pipe away from the second rotary joint is connected to the water inlet of the water-cooled circulating unit. The grinding assembly includes an outer shell, with its two ends respectively connected to the first rotary joint and the second rotary joint. The top of the outer shell has a feed inlet, and the bottom of the outer shell has a discharge outlet. A support roller frame is fixedly installed at the bottom of the inner cavity of the outer shell. Two rotating shafts are rotatably installed at both ends of the support roller frame. A first grinding roller and a second grinding roller are fixedly connected to the outer side of the rotating shafts respectively. The grinding assembly also includes a transfer tube, the outer end face of which is fixedly connected to the first rotary joint, and a hollow tube is rotatably connected to the end of the transfer tube away from the first rotary joint. A distributor head is used to divide the cooling water into three equal parts and is fixedly connected inside the hollow tube. The cross-sectional end of the distributor head is fixedly connected to the rotating shaft. Both the rotating shaft and the hollow tube are fixedly connected to a three-pronged tube on their outer sides, wherein the three-pronged tube is in communication with the hollow tube. An electric push rod is fixedly installed inside the No. 1 grinding roller, and a cooling half-pipe is fixedly connected to the output end of the electric push rod. A fixing strip is fixedly connected inside the No. 1 grinding roller, and a fitting ring is fixedly connected to the end of the fixing strip away from the No. 1 grinding roller, wherein both ends of the fitting ring are fitted with the cooling half pipe. The space enclosed by the interlocking ring and the cooling half-pipe is used to control the flow rate of the cooling water and the range of heat contact. The outer end of the cooling half-tube is fitted with a tough leak-proof sleeve, which is fastened to the outside of the No. 1 grinding roller by bolts. A tapered corrugated pipe is fixedly connected to the outer end face of the cooling half-tube, and the end of the tapered corrugated pipe away from the cooling half-tube is fixedly connected to the three-headed pipe. A through-tube is fixedly installed inside the No. 1 grinding roller. The outer end face of the through-tube is connected to the three-head tube. The end of the through-tube away from the three-head tube is connected to the center of the No. 1 grinding roller. An inner fixing plate is fixedly connected inside the through-tube. A fitting plug is inserted into the outer side of the inner fixing plate. A sliding ring is fixedly connected to the outer side of the fitting plug. The sliding ring is slidably adapted to the inside of the through-tube. The surface of the through-tube has a straight groove hole, and an extension rod is slidably adapted to the straight groove hole. One end of the extension rod is fixedly connected to the sliding ring. Leak-proof folding pieces are symmetrically connected to both sides of the extension rod. The end of the leak-proof folding piece away from the extension rod is fixedly connected to the through-tube. The first grinding roller has an internal groove, and a sliding folding rod is slidably fitted inside the internal groove. One end of the sliding folding rod is fixedly connected to the cooling half-pipe, and the end of the sliding folding rod away from the cooling half-pipe is fixedly connected to the extension rod.

2. A grinding mill with a water cooling mechanism according to claim 1, characterized in that: A servo motor is connected to the outer side of the support roller frame via a frame. The output end of the servo motor is connected to a first pulley. A belt is driven to the outer side of the first pulley, and a second pulley is driven to the inner side of the belt away from the first pulley.

3. A grinding mill with a water cooling mechanism according to claim 2, characterized in that: The outer side of the belt is connected to a third pulley, which rotates in the opposite direction to the second pulley with its center facing downwards. The center of both the third and second pulleys is fixedly connected to the shaft.

4. A grinding mill with a water cooling mechanism according to claim 1, characterized in that: A short tube is fixedly connected to the outer end face of the No. 1 grinding roller. A sleeve tube is fixedly connected to the end of the short tube away from the No. 1 grinding roller. A flow pipe is fixedly connected to the side of the sleeve tube away from the short tube. The end of the flow pipe away from the sleeve tube is fixedly connected to the No. 2 rotary joint. The sleeve pipe is used to sequentially pass the water inside the No. 1 and No. 2 grinding rollers through the sleeve pipe, the flow pipe and the No. 2 rotary joint until it enters the water-cooled circulation unit.

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