Glycerol block polyether unloading mechanism

Abstract

The invention discloses a glycerol block polyether discharging mechanism, and relates to the related technical field of chemical raw material discharging devices, the glycerol block polyether discharging mechanism comprises a feeding bin and a placing base located on the peripheral side of the feeding bin, and the placing base is used for placing a storage barrel for storing glycerol block polyether; the interior of the feeding bin communicates with the interior of the storage barrel through a guide pipe, and a draw-off pump is arranged on the guide pipe. A heating mechanism for heating the storage barrel is arranged on the placement base and comprises a rotating frame rotationally connected to the placement base, a rotation driving structure for driving the rotating frame to rotate, a heating plate slidably arranged on a limiting rail radially arranged on the rotating frame, and a first air cylinder for driving the heating plate to slide. The discharging mechanism can be used for positioning and heating the glycerol block polyether storage barrels with different sizes, so that the energy consumption for extracting the glycerol block polyether is effectively reduced, and the glycerol block polyether can be extracted more cleanly.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical raw material unloading devices, and in particular to a glycerol block polyether unloading mechanism. Background Art

[0002] Glycerol block polyether is a polymer formed by the ring-opening polymerization reaction of glycerol and epoxides such as ethylene oxide (EO) and propylene oxide (PO). In this process, glycerol serves as the initiator, and the active hydrogen atoms in its molecules react with the epoxides to form polymer chains. During storage, when the EO block is relatively long, the hydrophilicity of the molecules increases, which may lead to an increase in viscosity.

[0003] When transporting a large quantity of glycerol block polyether, it is usually transported by tank trucks, while when transporting a small quantity of glycerol block polyether, it is usually transported in galvanized iron drums.

[0004] For glycerol block polyether filled in galvanized iron drums, during unloading, generally, manual pouring or pumping methods are used. However, the overall mass of the galvanized iron drums filled with glycerol block polyether is relatively large, and workers need to cooperate with equipment such as cranes to pour, resulting in poor safety. Moreover, during the pouring process, a large amount of air will be mixed into the glycerol block polyether, leading to a decrease in the purity of the glycerol block polyether, the mixing of air bubbles, and a certain degree of contamination. In addition, the viscosity of glycerol block polyether is relatively high at low temperatures, making it difficult to pour the glycerol block polyether adhering to the barrel wall completely, resulting in a certain degree of waste. When using the pumping method for extraction and unloading, due to the relatively high viscosity at low temperatures, not only does the energy consumption for extraction increase, but also the glycerol block polyether on the barrel wall cannot be extracted completely, resulting in a certain degree of waste. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a glycerol block polyether unloading mechanism is proposed. This glycerol block polyether unloading mechanism can position and heat storage barrels of glycerol block polyether of different sizes, effectively reduce the energy consumption for extracting glycerol block polyether, and can extract the glycerol block polyether more cleanly.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A glycerol block polyether unloading mechanism, comprising: A feed bin and a placement base located on the periphery of the feed bin, the placement base being used for placing storage barrels of glycerol block polyether; A conduit is provided for communicating between the interior of the feed bin and the interior of the storage barrel, and an extraction pump is provided on the conduit; A heating mechanism for heating the storage barrel is provided on the placement base. The heating mechanism includes a rotating frame rotatably connected to the placement base, a rotary drive structure for driving the rotation of the rotating frame, a heating plate slidably disposed on a radially arranged limiting track on the rotating frame, and a first cylinder for driving the sliding of the heating plate. When discharging the glycerol-block polyether by this discharging mechanism, the storage barrel is placed on the placement base. The movable end of the first cylinder extends to fit the heating plate against the outer wall of the storage barrel. Heat conduction occurs between the heating plate and the storage barrel through the heat generated by the heating plate, so that the storage barrel and the glycerol-block polyether inside the storage barrel are heated, thereby reducing the viscosity of the glycerol-block polyether. The rotation of the rotating frame driven by the rotary drive structure drives the rotation of the heating plate, enabling the heat of the heating plate to be evenly conducted to all parts of the storage barrel. Then, the heated glycerol-block polyether with reduced viscosity is extracted by a pumping pump. Using this structure enables the heating plate to fit different-sized storage barrels for heat conduction, can be used in conjunction with different-sized storage barrels, effectively reduces the energy consumption for extracting glycerol-block polyether, and can extract the glycerol-block polyether more cleanly.

[0007] In the above technical solution, preferably, a bracket is fixedly provided on the placement base, the first cylinder is fixed on the bracket, an arc-shaped track is provided on the outer wall of the heating plate, and a sliding block on the movable end of the first cylinder, and the sliding block is slidably fitted with the arc-shaped track with a clearance. The rotary drive structure drives the rotation of the rotating frame by continuously rotating forward and backward. During the process of the rotary drive structure driving the rotation of the rotating frame, only the heating plate rotates with the rotating frame, while the bracket and the first cylinder do not rotate, avoiding the need for a larger equipment installation space for the bracket and the first cylinder to rotate together, and avoiding the risk of the bracket and the first cylinder rotating together and easily colliding with workers, causing safety accidents.

[0008] In the above technical solution, preferably, a Hall element is provided on the movable end of the first cylinder, and a positioning magnet is connected to the arc-shaped track corresponding to the Hall element. Using this structure enables the Hall element and the positioning magnet to cooperate to position the angle of the heating plate, so as to ensure that it is parallel to the limiting track when the first cylinder retracts, and avoid the sliding block separating from the arc-shaped track.

[0009] In the above technical solution, preferably, the rotary drive structure includes a gear ring connected to the rotating frame, a first motor connected to the placement base, and a first gear connected to the output end of the first motor, and the first gear meshes with the gear ring. Using this structure can conveniently control the forward and reverse rotation of the rotating frame by the forward and reverse rotation of the first motor.

[0010] In the above technical solution, preferably, a clamping assembly for stabilizing the position of the storage bucket is provided on the placement base. The clamping assembly includes clamping blocks located on both sides of the storage bucket, connecting rods connected to the clamping blocks, limiting rods slidably connected to the connecting rods, a double-headed screw rotatably connected to the placement base and threadedly connected to the two connecting rods at both ends respectively, and a screw driving structure for driving the double-headed screw to rotate. Adopting this structure can stably position the storage bucket and ensure that the storage bucket is fixed at the center position of the placement base.

[0011] In the above technical solution, preferably, the screw driving structure includes a driven gear connected to the double-headed screw, a driving gear rotatably connected to the placement base, and a driving motor for driving the driving gear to rotate. The driven gear meshes with the driving gear. Adopting this structure can conveniently drive the double-headed screw to rotate.

[0012] In the above technical solution, preferably, a column is provided between the feed bin and the storage bucket. A vertical track is connected to the column. A top plate is slidably connected to the vertical track. A fixing frame is connected to one end of the top plate at the top. The conduit is connected to the fixing frame. A lifting driving structure for driving the top plate to lift and lower is provided on the column. Adopting this structure can drive the conduit to rise or fall by the lifting driving structure, so as to control the two ends of the conduit to extend into or pull out of the storage bucket and the feed bin.

[0013] In the above technical solution, preferably, the lifting driving structure includes a rack fixed to the top plate, a lifting motor fixed to the column, and a rotating gear connected to the output end of the lifting motor. The rotating gear meshes with the rack. Adopting this structure can conveniently control the lifting of the top plate by the forward and reverse rotation of the lifting motor.

[0014] In the above technical solution, preferably, the bottom of the top plate is connected to the movable end of the second cylinder, the bottom of the second cylinder is connected to the first cylinder through a pipeline, the side wall of the first cylinder is provided with a one-way air outlet, the one-way air outlet is provided with a first overflow valve, the second cylinder is provided with a one-way air inlet, and the one-way air inlet is provided with a second overflow valve. With this structure, when the material storage barrel is finished feeding, in the process of driving the top plate to rise, the second cylinder first sucks air from the first cylinder, so that the movable end of the first cylinder contracts and pulls the heating plate back to the outside. When the first cylinder contracts to the shortest, it overcomes the resistance of the second overflow valve and continues to inhale air from the one-way air outlet until enough gas is inhaled into the second cylinder; after replacing a new storage barrel, in the process of driving the top plate to descend, the gas in the second cylinder is squeezed into the first cylinder, the movable end of the second cylinder extends, and the heating plate is pushed toward the storage barrel. When the heating plate contacts the storage barrel, the gas that continues to be discharged from the second cylinder will be discharged from the first overflow valve. In this way, the opening and closing of the heating plate can be controlled by the lifting of the top plate, and the heating plate can be ensured to fit with storage barrels of different sizes.

[0015] In the above technical solution, preferably, the inner wall of the heating plate is provided with a plurality of rollers for rotating in cooperation with the outer wall of the material storage barrel. This structure is used to convert the sliding friction between the heating plate and the material storage barrel into rolling friction between the rollers and the material storage barrel, so that the heating plate and the material storage barrel will not be worn due to the sliding friction when they rotate relative to each other.

[0016] The beneficial effects of the present invention are as follows: when unloading, the glycerin block polyether unloading mechanism places the storage barrel on the placing base, extends the movable end of the first cylinder to fit the heating plate to the outer wall of the storage barrel, and heats the storage barrel through the heating plate to conduct heat conduction, so that the storage barrel and the glycerin block polyether in the storage barrel are heated, thereby reducing the viscosity of the glycerin block polyether, and the rotation of the rotating frame driven by the rotary drive structure drives the heating plate to rotate, so that the heat of the heating plate can be evenly conducted to all parts of the storage barrel, and then the glycerin block polyether with reduced viscosity after heating is extracted by the extraction pump. The use of this structure allows the heating plate to fit with storage barrels of different sizes for heat conduction, and can be used in conjunction with storage barrels of different sizes, effectively reducing the energy consumption of extracting the glycerin block polyether, and can extract the glycerin block polyether more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the use status of an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure where the base is placed in an embodiment of the present invention.

[0019] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic structural view of the clamping assembly in the embodiment of the present invention.

[0021] Figure 5 This is a schematic structural view of the rotating frame in the embodiment of the present invention.

[0022] Figure 6 This is an exploded schematic structural view of the output assembly in the embodiment of the present invention.

[0023] Figure 7 This is a schematic structural view of the connection structure between the first cylinder and the second cylinder in the embodiment of the present invention. Detailed implementation manners

[0024] The technical solution of the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0026] See Figures 1 to 7 , a glycerol block polyether discharging mechanism, comprising: A feed bin 1 and a placement base 2 located on the periphery of the feed bin 1. The placement base 2 is used to place a storage barrel 3 for storing glycerol block polyether. In this embodiment, two placement bases 2 are provided to discharge materials simultaneously; The interior of the feed bin 1 is communicated with the interior of the storage barrel 3 through a conduit 6, and a pumping pump 7 is arranged on the conduit 6; A heating mechanism 4 for heating the storage barrel 3 is arranged on the placement base 2. The heating mechanism 4 includes a rotating frame 16 rotatably connected to the placement base 2, a rotation driving structure for driving the rotation of the rotating frame 16, a heating plate 10 slidably arranged on a radially arranged limiting track 17 on the rotating frame 16, and a first cylinder 13 for driving the sliding of the heating plate 10.

[0027] An infrared heater 11 is provided on the inner wall of the heating plate 10. The infrared heater 11 can be selected from existing infrared heaters such as tubular infrared heaters, plate / surface infrared heaters, and ceramic infrared heaters. The outer wall of the heating plate 10 is made of a heat-insulating material to reduce heat loss.

[0028] When unloading, the glycerin block polyether unloading mechanism places the storage barrel on the placing base 2, extends the movable end of the first cylinder 13 to fit the heating plate 10 to the outer wall of the storage barrel 3, and heats the storage barrel 3 through the heating plate 10 to conduct heat conduction between the storage barrel 3, so that the storage barrel 3 and the glycerin block polyether in the storage barrel 3 are heated, thereby reducing the viscosity of the glycerin block polyether, and drives the rotation of the rotating frame 16 through the rotary drive structure to drive the heating plate 10 to rotate, so that the heat of the heating plate 10 can be evenly conducted to all parts of the storage barrel 3, and then the glycerin block polyether with reduced viscosity after heating is extracted by the extraction pump. The use of this structure allows the heating plate 10 to fit with storage barrels 3 of different sizes for heat conduction, and can be used in conjunction with storage barrels 3 of different sizes, effectively reducing the energy consumption of extracting glycerin block polyether, and can extract glycerin block polyether more cleanly.

[0029] In this embodiment, in order to prevent the temperature of the glycerol block polyether in the feed bin 1 from being too low, an insulation layer may be provided on the outer wall of the feed bin 1 .

[0030] In this embodiment, in order to reduce the space occupied by the heating plate 10 when rotating and improve safety, a bracket 12 is fixedly provided on the base 2, a first cylinder 13 is fixed on the bracket 12, an arc track 14 is provided on the outer wall of the heating plate 10, and a slide block 15 is provided on the movable end of the first cylinder 13, and the slide block 15 slides with the clearance of the arc track 14. The rotary drive structure drives the rotating frame 16 to rotate in a continuously forward and reverse manner. In the process of the rotary drive structure driving the rotating frame 16 to rotate, only the heating plate 10 rotates with the rotating frame 16, while the bracket 12 and the first cylinder 13 do not rotate, so as to avoid the bracket 12 and the first cylinder 13 rotating together, which requires a larger equipment installation space, and avoids the bracket 12 and the first cylinder 13 rotating together, which is easy to collide with workers and cause safety accidents.

[0031] Of course, in other embodiments, the bracket 12 is fixed on the rotating frame 16, the first cylinder 13 is fixed on the bracket 12, and the output end of the heating plate 10 is fixedly connected to the movable end of the first cylinder 13. In this connection mode, when the rotating frame 16 rotates, the heating plate 10, the bracket 12 and the first cylinder 13 rotate together.

[0032] In this embodiment, a Hall element 21 is provided on the movable end of the first cylinder 13, and a positioning magnetic block 22 is connected to the arc track 14 corresponding to the Hall element 21. This structure enables the Hall element and the positioning magnetic block to cooperate to locate the angle of the heating plate 10, and the control device can locate the angle of the heating plate 10 by receiving the electrical signal of the Hall element and cooperating with the rotation drive structure, so that when the first cylinder 13 is retracted, it can be ensured to be parallel to the limit track 17, and the sliding block 15 is prevented from being separated from the arc track 14.

[0033] In this embodiment, the rotation driving structure includes a gear ring 18 connected to the rotating frame 16, a first motor 20 connected to the placing base 2, and a first gear 19 connected to the output end of the first motor 20. The first gear 19 meshes with the gear ring 18. With this structure, the forward and reverse rotations of the rotating frame 16 can be conveniently controlled by the forward and reverse rotations of the first motor 20, and the structure is simple and easy to control.

[0034] In this embodiment, a clamping assembly 5 for stabilizing the position of the storage barrel 3 is provided on the placing base 2. The clamping assembly 5 includes clamping blocks 23 located on both sides of the storage barrel 3, connecting rods 24 connected to the clamping blocks 23, limiting rods 25 slidably connected to the connecting rods 24, a double-headed screw 26 rotatably connected to the placing base 2 and threadedly connected to the two connecting rods 24 at both ends, and a screw driving structure for driving the double-headed screw 26 to rotate. With this structure, the storage barrel 3 can be stably positioned and ensured to be fixed at the central position of the placing base 2.

[0035] In this embodiment, the screw driving structure includes a driven gear 27 connected to the double-headed screw 26, a driving gear 28 rotatably connected to the placing base 2, and a driving motor 29 for driving the driving gear 28 to rotate. The driven gear 27 meshes with the driving gear 28. With this structure, the double-headed screw 26 can be conveniently driven to rotate.

[0036] In this embodiment, a column 30 is provided between the feed bin 1 and the storage barrel 3. A vertical track 31 is connected to the column 30. A top plate 32 is slidably connected to the vertical track 31. A fixing frame 33 is connected to one end of the top plate 32 at the top. The conduit 6 is connected to the fixing frame 33. A lifting driving structure for driving the top plate 32 to lift and lower is provided on the column 30. With this structure, the conduit 6 can be driven to rise or fall by the lifting driving structure, so as to control the two ends of the conduit 6 to extend into or out of the storage barrel 3 and the feed bin 1.

[0037] In this embodiment, the lifting driving structure includes a rack 34 fixed to the top plate 32, a lifting motor 35 fixed to the column 30, and a rotating gear 36 connected to the output end of the lifting motor 35. The rotating gear 36 meshes with the rack 34. With this structure, the lifting and lowering of the top plate 32 can be conveniently controlled by the forward and reverse rotations of the lifting motor 35.

[0038] In this embodiment, the bottom of the top plate 32 is connected to the movable end of the second cylinder 37. The bottom of the second cylinder 37 is communicated with the first cylinder 13 through a pipeline. A one-way air outlet 38 is provided on the side wall of the first cylinder 13, a first overflow valve 39 is arranged on the one-way air outlet 38, a one-way air inlet 40 is provided on the second cylinder 37, and a second overflow valve 41 is arranged on the one-way air inlet 40. With this structure, when the feeding of the storage barrel 3 is completed, during the process of driving the top plate 32 to rise, the second cylinder 37 first sucks air from the first cylinder 13, causing the movable end of the first cylinder 13 to contract and pulling the heating plate 10 back outward. When the first cylinder 13 contracts to the shortest, it continues to intake air from the one-way air outlet 38 against the resistance of the second overflow valve 41 until enough gas is inhaled into the second cylinder 37. Enough gas means that when the second cylinder 37 is driven by the top plate 32 to press down, the gas extruded from the second cylinder 37 can make each first cylinder 13 extend to the maximum value; after replacing the new storage barrel 3, during the process of driving the top plate 32 to descend, the gas in the second cylinder 37 is extruded into the first cylinder 13, and the movable end of the second cylinder 13 extends, pushing the heating plate 10 toward the storage barrel 3. When the heating plate 10 contacts the storage barrel 3, the gas continuously discharged from the second cylinder 13 will be discharged from the first overflow valve 39. In this way, the opening and closing of the heating plate 10 are controlled by the lifting of the top plate 32, and the heating plate 10 can be ensured to fit different-sized storage barrels 3.

[0039] Both the one-way air inlet 40 and the one-way air outlet 38 achieve one-way ventilation through one-way valves. The first overflow valve 39 exhausts air when the internal positive pressure is higher than the overflow pressure of the first overflow valve 39, and the second overflow valve 41 intakes air when the internal negative pressure is higher than the overflow pressure of the first overflow valve 39.

[0040] In this embodiment, a plurality of rollers 8 for abuting and cooperating with the outer wall of the storage barrel 3 to rotate are arranged on the inner wall of the heating plate 10. With this structure, the sliding friction between the heating plate 10 and the storage barrel 3 is converted into the rolling friction between the rollers 8 and the storage barrel 3, so that the heating plate 10 and the storage barrel 3 will not be worn due to sliding friction when they rotate relative to each other.

[0041] In this embodiment, a discharge port is provided at the bottom of the feed bin 1. An output assembly 9 is arranged in the discharge port. The output assembly 9 is connected to the discharge port of the feed bin 1 and is used to convey the glycerol-block polyether in the feed bin 1 to the outside. The output assembly 9 includes a conveying pipeline 42 connected to the discharge port of the feed bin 1, a driving shaft 43 rotatably connected in the conveying pipeline 42, a spiral blade 44 connected to the driving shaft 43, and a servo motor 45 for driving the driving shaft 43 to rotate. The servo motor 45 drives the spiral blade 44 to rotate, thereby conveying the glycerol-block polyether in the feed bin 1.

[0042] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes should be covered within the protection scope of the present invention.

Claims

1. A glycerol block polyether unloading mechanism, characterized in that: include: A feed bin (1) and a placement base (2) located on the side of the feed bin (1), wherein the placement base (2) is used to place a storage barrel (3) for storing glycerol block polyether; The interior of the feed bin (1) is connected to the interior of the storage barrel (3) via a conduit (6), and an extraction pump (7) is provided on the conduit (6); The placement base (2) is provided with a heating mechanism (4) for heating the material storage barrel (3), the heating mechanism (4) comprising a rotating frame (16) rotatably connected to the placement base (2), a rotary drive structure for driving the rotating frame (16) to rotate, a heating plate (10) slidably arranged on a radially arranged limiting track (17) on the rotating frame (16), and a first cylinder (13) for driving the heating plate (10) to slide.

2. A glycerol block polyether unloading mechanism as claimed in claim 1, characterized in that: A bracket (12) is fixedly provided on the placement base (2), the first cylinder (13) is fixed on the bracket (12), an arc track (14) is provided on the outer wall of the heating plate (10), and a sliding block (15) is provided on the movable end of the first cylinder (13), and the sliding block (15) slides with the arc track (14) in a clearance fit.

3. A glycerol block polyether unloading mechanism as claimed in claim 2, characterized in that: A Hall element (21) is provided on the movable end of the first cylinder (13), and a positioning magnetic block (22) is connected to the arc track (14) corresponding to the Hall element (21).

4. A glycerol block polyether unloading mechanism as claimed in claim 1, characterized in that: The rotary drive structure comprises a ring gear (18) connected to the rotating frame (16), a first motor (20) connected to the placement base (2), and a first gear (19) connected to the output end of the first motor (20), wherein the first gear (19) is meshed with the ring gear (18).

5. A glycerol block polyether unloading mechanism as claimed in claim 1, characterized in that: The placement base (2) is provided with a clamping assembly (5) for stabilizing the position of the storage barrel (3), and the clamping assembly (5) comprises clamping blocks (23) located at both sides of the storage barrel (3), connecting rods (24) connected to the clamping blocks (23), limiting rods (25) slidably connected to the connecting rods (24), double-headed screws (26) rotatably connected to the placement base (2) and respectively threadedly connected to the two connecting rods (24), and a screw driving structure for driving the double-headed screws (26) to rotate.

6. A glycerol block polyether unloading mechanism as claimed in claim 5, characterized in that: The screw drive structure comprises a driven gear (27) connected to the double-headed screw (26), a driving gear (28) rotatably connected to the placement base (2), and a driving motor (29) for driving the driving gear (28) to rotate, and the driven gear (27) is meshed with the driving gear (28).

7. A glycerol block polyether unloading mechanism as claimed in claim 1, characterized in that: A column (30) is provided between the feed bin (1) and the storage barrel (3), the column (30) is connected to a vertical track (31), a top plate (32) is slidably connected to the vertical track (31), a fixing frame (33) is connected to one end of the top plate (32) located at the top, the conduit (6) is connected to the fixing frame (33), and a lifting drive structure for driving the top plate (32) to rise and fall is provided on the column (30).

8. A glycerol block polyether unloading mechanism as claimed in claim 7, characterized in that: The lifting drive structure comprises a rack (34) fixed on the top plate (32), a lifting motor (35) fixed on the column (30), and a rotating gear (36) connected to the output end of the lifting motor (35), wherein the rotating gear (36) is meshed with the rack (34).

9. A glycerol block polyether unloading mechanism as claimed in claim 8, characterized in that: The bottom of the top plate (32) is connected to the movable end of the second cylinder (37); the bottom of the second cylinder (37) is connected to the first cylinder (13) through a pipeline; a one-way air outlet (38) is provided on the side wall of the first cylinder (13); a first overflow valve (39) is provided on the one-way air outlet (38); a one-way air inlet (40) is provided on the second cylinder (37); a second overflow valve (41) is provided on the one-way air inlet (40).

10. A glycerol block polyether unloading mechanism as claimed in claim 1, characterized in that: The inner wall of the heating plate (10) is provided with a plurality of rollers (8) for rotating in cooperation with the outer wall of the material storage barrel (3).

Images