Dust-proof lifting and feeding device for starch pre-gelatinized emulsion
By using the method of fan negative pressure suction and high-pressure gas backflushing in the starch pregelatinized emulsion lifting and feeding device, the problem of dust pollution during the starch emulsion lifting process is solved, and efficient dust control and product quality assurance are achieved.
Patent Information
- Application Number
- CN202422970261.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The existing starch emulsion lifting process generates a large amount of dust pollution, which affects product quality.
A feeding device including a spiral elevator, a square bracket and a protective cover was designed. The fan was used to generate negative pressure to suck in dust and filter it through a filter bag. The high-pressure gas tank was used for backblowing to remove attached dust and prevent dust pollution.
It effectively suppresses the generation of starch dust, avoids dust pollution, ensures the quality of starch emulsion, and facilitates the maintenance and cleaning of filter bags.
Smart Images
Figure CN223372307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of modified starch production, in particular to a dust-proof lifting and feeding device for starch pregelatinized emulsion. Background Art
[0002] Pregelatinized starch can be produced using drum, spray, and extrusion methods. The drum method is categorized into two types: double-drum and single-drum. The two drums of a double-drum dryer move in opposite directions. Starch emulsion is fed between the two drums, heated to approximately 150°C. The emulsion is immediately gelatinized and dried into a thin film on its surface. This film is scraped off with a scraper and crushed to produce the product. The single-drum method involves directly transferring the starch emulsion to the surface of a drum heated to approximately 150°C for gelatinization. Starch emulsion processing involves lifting dry starch into a blender, where water is added while stirring to form the starch emulsion. Currently, most feeding devices use screw conveyors. Bags of starch are poured into the conveyor's feed hopper, which lifts them upwards and transports them into the blender. This process generates a large amount of starch dust, causing dust pollution. This dust adheres to the surface of the gelatinized, dried emulsion, affecting product quality. Utility Model Content
[0003] In order to solve the above problems, the utility model proposes a dust-proof lifting and feeding device for starch pregelatinized emulsion.
[0004] The technical solution of the utility model is: a starch pregelatinized emulsion dust-proof lifting feeding device, comprising a spiral elevator and a square bracket, the feed hopper of the spiral elevator is matched and connected to the upper end of the square bracket, the upper surface of the square bracket is a square cylindrical protective cover, the lower side of the square cylindrical protective cover is provided with a feeding notch, triangular baffles are provided on both sides of the feeding notch, the upper end of the protective cover is provided with a top cover, the top cover is a hollow groove structure, the middle part of the top cover is provided with a fan corresponding to the suction hole in the middle of the top cover, the upper port part of the protective cover is provided with a baffle, the baffle and the top cover are arranged parallel to each other, an suction cavity is formed between the baffle and the top cover, a plurality of circular holes are evenly provided on the surface of the baffle, a supporting cylinder is installed in the circular hole, the supporting cylinder is a detachable structure, a filter bag is sealed at the lower end of the support cylinder, the lower end of the filter bag is spaced a certain distance from the upper end of the feed hopper, and a plurality of filter bags cover the cross-sectional area of the protective cover.
[0005] Preferably, a plurality of inner support rods are evenly distributed on the bottom surface of the support cylinder. The inner support rods are cylindrical rods and are supported on the inner side surface of the filter bag.
[0006] Preferably, the lower end of the inner support rod is provided with an arc segment, and the outer ends of several arc segments are butted together to form a circular head structure, and the lower end of the filter bag is matched and fitted with the circular head.
[0007] Preferably, an annular rib is provided in the middle of the outer side surface of the supporting cylinder, the size of the annular rib is larger than the size of the circular hole, and the annular rib is supported on the surface of the baffle.
[0008] Preferably, a high-pressure gas tank is installed on the upper part of the outer side of the protective cover, and an air inlet valve is provided at one end of the high-pressure gas tank. Several connecting pipes are evenly provided on the side of the high-pressure gas tank along the busbar direction, and the connecting pipe is connected to a blowing pipe that extends horizontally into the air intake cavity. A through hole is provided on the side panel of the protective cover, and the blowing pipe extends into the air intake cavity from the through hole, and the outer end of the blowing pipe is closed.
[0009] Preferably, a plurality of spray branch pipes are vertically provided on the side of the spray main pipe, and the spray branch pipes vertically extend into the middle of the filter bag, and the cross-sectional dimensions of the spray branch pipes are smaller than the cross-sectional dimensions of the spray main pipe.
[0010] Preferably, the high-pressure gas tank is placed horizontally on a tripod provided on the outer side of the protective cover, and the high-pressure gas tank and the tripod are fixedly connected by a U-shaped hoop, and a threaded section is provided at the lower end of the U-shaped hoop, and a nut is installed on the threaded section.
[0011] Preferably, the upper port of the feed hopper is provided with a square frame plate, the interior of the frame plate is provided with a steel mesh, and the size of the steel mesh is larger than the size of the upper port of the feed hopper.
[0012] The beneficial technical effects of the utility model are:
[0013] (1) The feeding device generates negative pressure in the protective cover through the fan. The starch dust generated by the feeding will be sucked into the protective cover under the action of the negative pressure. The dust is filtered by the filter bag in the protective cover and attached to the surface of the filter bag, which suppresses the generation of dust and prevents the feeding dust pollution. It can also prevent the dust from adhering to the surface of the emulsion that is gelatinized and dried into a film, thereby affecting the product quality.
[0014] (2) The device can pass the blowing gas from the blowing main pipe to the blowing branch pipe through a high-pressure gas tank, forming backblowing in the filter bag, which can simply and efficiently blow off the starch attached to the outer side of the filter bag, avoiding clogging of the filter bag and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0017] Figure 3 yes Figure 2 AA-direction cross-sectional structural diagram;
[0018] Figure 4 yes Figure 3 BB-direction cross-sectional structural diagram;
[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model after removing the front side panels of the protective cover;
[0020] Figure 6 A schematic diagram of the three-dimensional structure of the filter bag and the inner support rod of the utility model.
[0021] In the figure, 01. Screw elevator, 11. Feed hopper, 02. Square bracket, 21. Square frame plate, 22. Wire mesh, 31. Protective cover, 311. Feed notch, 32. Top cover, 321. Fan, 33. Baffle, 34. Intake cavity, 41. Support cylinder, 411. Annular rib, 412. Inner support rod, 413. Arc segment, 42. Filter bag, 51. High-pressure gas tank, 511. Intake valve, 52. Injection main pipe, 521. Injection branch pipe, 61. Tripod, 62. U-shaped hoop. DETAILED DESCRIPTION
[0022] Example 1, see attached Figure 1-6 A dust-proof feeding device for starch pregelatinized emulsion includes a spiral elevator 01 and a square bracket 02. The feed hopper 11 of the spiral elevator is matched and connected to the upper end of the square bracket 02. The upper surface of the square bracket is provided with a square cylindrical protective cover 31. The lower side of the square cylindrical protective cover 31 is provided with a feed notch 311. A folding door can be installed at the feed notch. The upper end of the protective cover 31 is provided with a top cover 32. The top cover seals the upper end of the protective cover. The middle part of the top cover 32 is provided with a wind pipe corresponding to the air intake hole in the middle of the top cover. The upper end of the protective cover 31 is equipped with a baffle 33. An air intake cavity 34 is formed between the baffle and the top cover. When the fan 321 is activated, negative pressure is generated in the air intake cavity 34 through the air intake holes. The baffle 33 is evenly distributed with a number of circular holes. A support cylinder 41 is inserted into the holes. A filter bag 42 is sealed to the lower end of the support cylinder 41. The filter bag is made of a textile with uniform fine mesh. Several filter bags 42 cover the cross-sectional area of the protective cover 31. The upper end of the feed hopper 11 is equipped with a square frame 21, which is internally lined with a wire mesh 22.
[0023] The bottom surface of the support cylinder 41 is evenly distributed with several inner support rods 412, which support the inner side surface of the filter bag 42. The lower end of the inner support rod 412 is provided with an arc section 413, and the outer ends of several arc sections 413 are connected to each other to form a circular head structure. The inner support rods 412 and the arc sections 413 form a mesh cylinder structure, which supports the filter bag 42 from the inside so that it is in an inflated state, thereby achieving uniform filtration of starch dust.
[0024] An annular rib 411 is provided in the middle of the outer side surface of the support cylinder 41, and the annular rib is supported on the surface of the baffle 33. The annular rib 411 supports the support cylinder 41 downward to limit the support cylinder 41. The support cylinder 41 can be easily pulled out from the circular hole by pulling it upward, and the filter bag 42 can be pulled out together, which can be easily disassembled for maintenance.
[0025] When the feeding device of this embodiment is working, the bagged starch is poured into the feed hopper 11 from the feed notch 311 at the lower part of the protective cover 31. The wire mesh 22 in the prescription frame 21 of the feed hopper preliminarily breaks up the starch to prevent relatively large starch lumps from entering the feed hopper 11. The starch enters the conveyor and is lifted upward for feeding. During this process, the fan 321 is started to generate negative pressure in the air intake cavity 34 at the upper part of the protective cover 31. The starch dust generated by the feeding is sucked into the protective cover 31 under the action of the negative pressure. The filter bags 42 evenly arranged in the protective cover 31 filter the dust and attach it to the outer surface of the filter bags 42, thereby suppressing the generation of dust and preventing the feeding dust pollution phenomenon.
[0026] Example 2, see attached Figure 3-5 This embodiment is basically the same as the first embodiment, except that a high-pressure gas tank 51 is installed on the upper outer surface of the protective cover 31, and the high-pressure gas tank is filled with high-pressure gas. An air inlet valve 511 is provided at one end of the high-pressure gas tank 51, and the high-pressure gas is introduced into the high-pressure gas tank 51 through the air inlet valve 511. The side of the high-pressure gas tank 51 is evenly provided with a plurality of joint pipes along the busbar direction, and the joint pipe is connected to a blowing main pipe 52 that extends horizontally into the suction cavity 34. The blowing main pipe is provided with an electromagnetic control valve, and the opening and closing of the blowing main pipe is automatically controlled by the electromagnetic control valve. The outer end of the blowing main pipe 52 is closed, and a plurality of blowing branches 521 are vertically provided on the side of the blowing main pipe 52, and the blowing branches extend vertically into the middle of the filter bag 42. The number of the blowing branches 521 is the same as the number of the filter bags 42.
[0027] The high-pressure gas tank 51 is placed horizontally on a tripod 61 provided on the outer side of the protective cover 31 . The high-pressure gas tank 51 and the tripod 61 are fixedly connected by a U-shaped hoop 62 to ensure the stability and safety of the high-pressure gas tank 51 .
[0028] When back-blowing is performed through the high-pressure gas tank 51, the electromagnetic control valve automatically controls the opening of the spray main pipe 52, and the high-pressure gas enters the spray branch pipes 521 from the spray main pipe 52. The spray branch pipes 521 spray high-pressure gas to act on the middle part of the filter bag 42. The filter bag vibrates as a whole due to the high-pressure gas, and the starch attached to the outer side of the filter bag 42 is blown off. Back-blowing is performed regularly to avoid clogging of the filter bag mesh.
Claims
1. A dust-proof feeding device for starch pregelatinized emulsion, comprising a spiral elevator and a square bracket, wherein the feed hopper of the spiral elevator is matched and connected to the upper end of the square bracket, and wherein: The upper surface of the square bracket is provided with a square cylindrical protective cover, and a feed notch is provided at the lower side of the square cylindrical protective cover, and a top cover is provided at the upper end of the protective cover, and a fan corresponding to the air intake hole in the middle of the top cover is provided in the middle of the top cover, and a baffle is provided at the upper port of the protective cover, and an air intake cavity is formed between the baffle and the top cover, and a plurality of circular holes are evenly provided on the surface of the baffle, and a supporting cylinder is installed in the circular hole, and a filter bag is sealed and connected to the lower port of the supporting cylinder, and the plurality of filter bags cover the cross-sectional area of the protective cover.
2. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 1, characterized in that: The bottom surface of the supporting cylinder is evenly distributed with a plurality of inner support rods, and the inner support rods are supported on the inner side surface of the filter bag.
3. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 2, characterized in that: The lower end of the inner support rod is provided with an arc segment, and the outer ends of a plurality of arc segments are butted against each other to form a circular head structure.
4. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 1, characterized in that: An annular convex rib is provided at the middle portion of the outer side surface of the supporting cylinder, and the annular convex rib is supported on the surface of the baffle plate.
5. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 1, characterized in that: A high-pressure gas tank is installed on the upper part of the outer side of the protective cover, and an air intake valve is provided at one end of the high-pressure gas tank. Several joint pipes are evenly arranged on the side of the high-pressure gas tank along the busbar direction. The joint pipe is connected to a blowing main pipe that extends horizontally into the suction cavity, and the outer end of the blowing main pipe is closed.
6. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 5, characterized in that: A plurality of spray branch pipes are vertically arranged on the side of the spray main pipe, and the spray branch pipes vertically extend into the middle of the filter bag.
7. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 5, characterized in that: The high-pressure gas tank is placed transversely on a tripod arranged on the outer side of the protective cover, and the high-pressure gas tank and the tripod are fixedly connected by a U-shaped hoop.
8. The dust-proof lifting and feeding device for starch pregelatinized emulsion according to claim 1, characterized in that: The upper port of the feed hopper is provided with a square frame plate, and a steel wire mesh is provided inside the frame plate.