Ammonium polyphosphate compound fertilizer production raw material filling device
By designing an automated raw material filling device for polyammonium phosphate composite fertilizer production, the problems of low production automation and water vapor overflow are solved, and the automatic weighing and sealing raw materials are realized, which improves production efficiency and environmental safety.
Patent Information
- Application Number
- CN202421019809.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the production process of polyammonium phosphate composite fertilizer, the existing technology has low degree of automation, low efficiency in manual addition of raw materials, and the feeding port can easily cause water vapor overflow and bring odor problems.
A filling device including a raw material tank, a feeder, a metering box, a metering device and a discharge device is designed to automatically weigh and feed the raw material through a weighing sensor, and a sealed discharge device is used to prevent water vapor from overflowing.
It improves the automation level and operating efficiency of the production line, prevents odorous water vapor from overflowing from the feeding port, and improves the production environment and safety.
Smart Images
Figure CN222267016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ammonium polyphosphate compound fertilizer production equipment, in particular to a raw material filling device for ammonium polyphosphate compound fertilizer production. Background Art
[0002] Solid ammonium polyphosphate compound fertilizer is a new type of compound fertilizer product developed by our company. When producing solid ammonium polyphosphate compound fertilizer, solid ammonium phosphate needs to be added to the first mixing tank containing water to prepare the ammonium phosphate slurry solution. When preparing the ammonium phosphate slurry solution, the first mixing tank is heated by an evaporator to concentrate the slurry solution in the first mixing tank. At present, when filling the first mixing tank with solid ammonium phosphate raw materials, the raw materials are weighed manually and added through a conveyor belt. The degree of automation is low, the production efficiency is low, and the first mixing tank has an open feeding port. Water vapor will overflow from the feeding port, causing odor in the workshop. Therefore, in order to improve the degree of automation and production efficiency, and prevent the feeding port from overflowing with odorous water vapor, the inventor designed a set of raw material filling devices to improve the existing production line. Utility Model Content
[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, to provide a raw material filling device for the production of ammonium polyphosphate compound fertilizer, which can weigh and feed the raw materials, improve the automation degree of the production line and the production operation efficiency, and the discharge device is sealed with the first mixing tank to prevent odorous water vapor from overflowing from the feeding port.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a raw material filling device for the production of ammonium polyphosphate compound fertilizer, including a raw material tank, a feeder, a metering box, a metering device and a discharge device, the raw material tank is connected to the feed port of the feeder, the discharge port of the feeder is connected to the upper end of the metering box, the lower end of the metering box is equipped with a discharge device, and the metering device is installed in the metering box; the metering device includes a containing box, the top and bottom of the containing box are open, the containing box and the metering box are connected through a weighing sensor, the bottom sides of the containing box are respectively equipped with opening and closing doors through door shafts, the side walls of the containing box are hingedly equipped with a push rod device, the push rod device is hinged to the opening and closing door to drive the opening and closing door to open or close the bottom of the containing box.
[0005] The metering box comprises an upper bucket body, a lower bucket body and a middle section installed between the upper bucket body and the lower bucket body, and a metering device is installed in the middle section.
[0006] The upper port of the containing box is a bell-mouth structure.
[0007] The four corners of the upper outer wall of the containing box are respectively provided with first supports, the inner wall of the measuring box is provided with a second support below the corresponding first support, and the weighing sensor is installed between the first support and the second support.
[0008] The outer wall of the containing box is respectively provided with a third support on the opening side corresponding to the opening door, a connecting rod is provided at the bottom of the opening door, the upper end of the push rod device is hinged to the third support, and the lower end is hinged to the connecting rod.
[0009] The metering box is provided with a window at a position corresponding to the push rod device, and a cover plate is installed on the window.
[0010] The feeder includes a screw conveyor or a star feeder.
[0011] The discharging device comprises an electric or pneumatic butterfly valve or a gate valve.
[0012] The utility model has the following beneficial effects:
[0013] The raw material tank of the utility model is used to contain solid ammonium phosphate raw materials, the feeder is used to transport the raw materials in the raw material tank downstream, the metering box weighs the raw materials transported by the feeder through the internal metering device and then discharges them into the metering box, and the discharge device puts the weighed raw materials in the metering box into the first mixing tank. When in use, the discharge device is sealed and connected to the feeding port on the first mixing tank. The device can weigh and feed the raw materials, improve the automation degree of the production line and the production efficiency, and the discharge device is sealed and connected to the first mixing tank, which can prevent odorous water vapor from overflowing from the feeding port. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 This is a schematic diagram of the internal structure of the metering box of the utility model.
[0017] Figure 3 This is a schematic diagram of the structure inside the metering box of the utility model when the opening and closing door is opened.
[0018] Figure 4 This is a schematic diagram of the usage status of the utility model.
[0019] In the figure:
[0020] Raw material tank 10;
[0021] Feeder 20, connected with feed port 21, and discharge port 22;
[0022] Measuring box 30, upper bucket body 31, lower bucket body 32, middle section 33, second support 331, window 332, cover plate 333;
[0023] Measuring device 40, containing box 41, first support 411, third support 412, bell mouth structure 413, weighing sensor 42, door shaft 43, opening and closing door 44, connecting rod 441, push rod device 45;
[0024] Discharging device 50, connecting tube 51;
[0025] A first mixing tank 60 . DETAILED DESCRIPTION
[0026] like Figure 1-4 As shown, a raw material filling device for producing ammonium polyphosphate compound fertilizer includes a raw material tank 10, a feeder 20, a metering box 30, a metering device 40 and a discharging device 50, wherein the raw material tank 10 is connected to the feed port 21 of the feeder 20, the discharge port 22 of the feeder 20 is connected to the upper end of the metering box 30, the lower end of the metering box 30 is equipped with a discharging device 50, and the metering device 40 is installed in the metering box 30; the metering device 40 includes a containing box 41, the top and bottom of the containing box 41 are open, the containing box 41 and the metering box 30 are connected through a weighing sensor 42, opening and closing doors 44 are respectively installed on both sides of the bottom of the containing box 41 through door shafts 43, and a push rod device 45 is hingedly installed on the side wall of the containing box 41, and the push rod device 45 is hinged to the opening and closing door 44 so as to drive the opening and closing door 44 to open or close the bottom of the containing box 41. The raw material tank 10 is used to contain solid ammonium phosphate raw materials, the feeder 20 is used to transport the raw materials in the raw material tank 10 downstream, the metering box 30 weighs the raw materials transported by the feeder 20 through the internal metering device 40 and discharges them into the metering box 30, and the discharge device 50 puts the weighed raw materials in the metering box 30 into the first mixing tank 60. When in use, the discharge device 50 is sealed and connected to the feeding port on the first mixing tank 60. Through the above structure, the device can weigh and feed the raw materials, improve the automation degree and production efficiency of the production line, and the discharge device is sealed and connected to the first mixing tank, which can prevent odorous water vapor from overflowing from the feeding port.
[0027] Preferably, the weighing sensor 42 adopts a SBT440 weighing sensor, and four weighing sensors 42 are provided, and the four weighing sensors are respectively located at the four corners of the containing box 41, and one end of the weighing sensor 42 is fixedly mounted on the outer wall of the containing box 41, and the other end is fixedly mounted on the inner wall of the metering box 30. The cables of the weighing sensor 42 and the cables or pipes of the push rod device 45 are passed through the holes in the side wall of the metering box 30.
[0028] See also Figure 1The metering box 30 includes an upper bucket body 31, a lower bucket body 32, and a middle section 33 installed between the upper bucket body 31 and the lower bucket body 32, and the metering device 40 is installed in the middle section 33. The upper head body 31 is a structure of an upper circle and a lower surface with a larger bottom and a smaller top, the lower bucket body 32 is a structure of an upper circle and a lower surface with a larger top and a smaller bottom, and the middle section 33 is a square cylinder structure. Preferably, the upper bucket body 31, the lower bucket body 32 and the middle section 33 are connected by flange bolts. When in use, the lower bucket body 32 is used to accommodate the weighed raw materials.
[0029] See also Figure 2 The upper end of the receiving box 41 is a bell-mouth structure 413, which is a square bell-mouth structure with a larger upper portion and a smaller lower portion, to prevent the raw materials from falling into the gap between the receiving box 41 and the metering box 30. The bell-mouth structure 413 is provided to guide the materials. Specifically, during production, there is a gap of about 1 mm between the upper edge of the bell-mouth structure 413 and the inner wall of the metering box 30.
[0030] See also Figure 2 , first supports 411 are respectively provided at the four corners of the upper outer wall of the containing box 41, and second supports 331 are provided on the inner wall of the metering box 30 corresponding to the lower side of the first supports 411, and the weighing sensor 42 is installed between the first supports 411 and the second supports 331. The above structure facilitates the installation of the weighing sensor 42. When the above structure is adopted, the weighing sensor 42 adopts the SBT high-precision column pressure force sensor, and the installation stability of the metering device 40 is better.
[0031] See also Figure 2 , 3 The outer wall of the receiving box 41 is respectively provided with a third support 412 at the opening side corresponding to the opening door 44, a connecting rod 441 is provided at the bottom of the opening door 44, and the upper end of the push rod device 45 is hinged to the third support 412, and the lower end is hinged to the connecting rod 441. Through the above structure, the automatic opening and closing of the opening door 44 is realized.
[0032] Specifically, a CB double-ear seat is installed on the third support 412, and a CA single-ear seat is installed on the fixed end of the push rod device 45. The CA single-ear seat and the CB double-ear seat are hinged through a pin. A Y-joint is installed on the telescopic end of the push rod device 45, and the Y-joint is hinged to the connecting rod 441 through a pin. Figure 2 In the embodiment, the connecting rod 441 is welded to the bottom of the opening and closing door, one end of the connecting rod 441 extends out, and the telescopic end of the push rod device 45 is hinged to the extended end of the connecting rod 441.
[0033] Preferably, the push rod device 45 can be one of a pneumatic cylinder, an electric push rod, and a hydraulic cylinder.
[0034] For further information, see Figure 2The metering box 30 is provided with a window 332 at a position corresponding to the push rod device 45, and a cover plate 333 is installed on the window 332 to facilitate the maintenance of the push rod device 45. The cover plate 333 is installed on the metering box 30 by bolts and closes the window 332. When the push rod device 45 needs to be repaired, the cover plate 333 can be opened for maintenance.
[0035] Preferably, the feeder 20 includes a screw conveyor or a star feeder.
[0036] Preferably, the discharge device 50 comprises an electric or pneumatic butterfly valve or a gate valve.
[0037] The action process or principle of the utility model is as follows:
[0038] See also Figure 1-4 When in use, the discharge device 50 is connected to the feeding port of the first mixing tank 60 through the connecting tube 51. During production, the raw material tank 10 is fed with materials through the belt conveyor, and the feeder 20 conveys the raw materials in the raw material tank 10 downstream to the receiving box 41. At this time, the push rod device 45 is in an extended state, so that the opening and closing door 44 closes the bottom of the receiving box 41, and the materials are collected in the receiving box 41. When the materials in the receiving box 41 reach a preset weight, the feeder 20 stops, and then the push rod device 45 shortens, driving the opening and closing door 44 to open. Figure 3 In the state shown, the material is put into the lower bucket 32 below the metering box 30, and then the push rod device 45 is extended, so that the opening and closing door 44 closes the bottom of the containing box 41, and the next material weighing can be carried out. When it is necessary to add material to the first mixing tank 60, the discharge device 50 is opened, and the material in the lower bucket 32 is put into the first mixing tank 60. After the material in the lower bucket 32 is added, the discharge device 50 is quickly closed to prevent water vapor from entering the metering box 30. An exhaust gas recovery pipeline can be set on the top of the first mixing tank 60 to connect with the centralized exhaust gas treatment system of the factory.
Claims
1. A raw material filling device for producing ammonium polyphosphate compound fertilizer, characterized in that: The invention comprises a raw material tank (10), a feeder (20), a metering box (30), a metering device (40) and a discharge device (50), wherein the raw material tank (10) is connected to a feed port (21) of the feeder (20), a discharge port (22) of the feeder (20) is connected to the upper end of the metering box (30), a discharge device (50) is installed at the lower end of the metering box (30), and the metering device (40) is installed in the metering box (30); the metering device (40) comprises a receiving box (41), the top and bottom of the containing box (41) are open, the containing box (41) is connected to the metering box (30) via a weighing sensor (42), opening and closing doors (44) are respectively installed on both sides of the bottom of the containing box (41) via door shafts (43), and a push rod device (45) is hingedly installed on the side wall of the containing box (41), and the push rod device (45) is hingedly connected to the opening and closing door (44) to drive the opening and closing door (44) to open or close the bottom of the containing box (41).
2. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1, characterized in that: The metering box (30) comprises an upper bucket body (31), a lower bucket body (32), and a middle section (33) installed between the upper bucket body (31) and the lower bucket body (32), and the metering device (40) is installed in the middle section (33).
3. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1, characterized in that: The upper port of the containing box (41) is a bell-mouth structure (413).
4. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to any one of claims 1 to 3, characterized in that: First supports (411) are respectively provided at the four corners of the upper outer wall of the containing box (41), and a second support (331) is provided on the inner wall of the measuring box (30) below the corresponding first support (411), and the weighing sensor (42) is installed between the first support (411) and the second support (331).
5. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1, characterized in that: The outer wall of the containing box (41) is respectively provided with a third support (412) at the opening side corresponding to the opening door (44), a connecting rod (441) is provided at the bottom of the opening door (44), and the upper end of the push rod device (45) is hinged to the third support (412) and the lower end is hinged to the connecting rod (441).
6. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1 or 2, characterized in that: The metering box (30) is provided with a window (332) at a position corresponding to the push rod device (45), and a cover plate (333) is installed on the window (332).
7. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1, characterized in that: The feeder (20) comprises a screw conveyor or a star feeder.
8. The raw material filling device for producing ammonium polyphosphate compound fertilizer according to claim 1, characterized in that: The discharge device (50) comprises an electric or pneumatic butterfly valve or a gate valve.