Spiral feeding device for fluorine chemical industry
The semi-circular shell design and purification system solve the problems of time-consuming and labor-intensive disassembly and assembly of the screw feeder and the emission of harmful gases, achieving convenient cleaning and safe purification.
Patent Information
- Application Number
- CN202520359335.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The integrated shell design of existing screw feeders makes cleaning time-consuming and labor-intensive, and the harmful gases generated during cleaning are directly emitted without purification, posing a safety hazard.
It adopts a semi-circular shell design, and improves stability and sealing through limit pins and T-shaped plates. It is also equipped with a purification box and telescopic hose for gas purification treatment.
It enables convenient disassembly and cleaning of the casing, prevents material leakage, and effectively purifies harmful gases, thus improving cleaning efficiency and safety.
Smart Images

Figure CN223891772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical technology, and in particular to a screw feeder for fluorochemicals. Background Technology
[0002] Fluorides are widely distributed in nature in the form of fluoride ions. Fluorine is an element with extremely high reactivity and is known as the "mischievous child of the chemical world". However, once fluorine combines with other elements, it becomes a heat-resistant compound that is difficult to be corroded by pharmaceuticals and solvents and has "high safety performance". The compound has stable chemical properties and fluorine has strong non-metallic properties. In the fluorine chemical industry, a variety of large-scale chemical production equipment is designed, and the conveying of fluorine chemical raw materials requires the use of screw feeders.
[0003] However, in the existing technology, the shell of most screw feeders is a single piece. When the internal material is blocked or needs to be cleaned, it can only be removed from both ends to take out the internal auger. Disassembly and assembly are time-consuming and labor-intensive, which reduces the cleaning efficiency. Moreover, when cleaning the inside of the screw feeder, harmful gases are generated. If they are not purified and are directly emitted, they will cause pollution to the surrounding area and pose certain safety hazards. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the existing technology, most screw feeders have a one-piece shell. When the internal material is blocked or needs to be cleaned, the screw can only be removed from both ends. Disassembly and assembly are time-consuming and labor-intensive, reducing cleaning efficiency. Moreover, cleaning the inside of the screw feeder will generate harmful gases. If these gases are not purified and are directly emitted, they will cause pollution to the surrounding area and pose certain safety hazards.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a spiral feeding device for fluorochemicals, comprising: a semi-circular shell one and a semi-circular shell two, wherein two T-shaped grooves are provided on one side of the semi-circular shell one, the two T-shaped grooves being symmetrically opposite each other, and a semi-circular slot is provided on one side of the semi-circular shell one, further comprising:
[0006] Two T-shaped plates are fixedly installed at the bottom of the semi-circular shell II, and limit holes are provided on one side of the opposite side of the two T-shaped plates;
[0007] A semi-circular retaining plate is fixedly installed on one side of the semi-circular housing two;
[0008] A sealing circular plate is fixedly installed on the side of the semi-circular shell away from the semi-circular retaining plate;
[0009] The handle is fixedly installed on the outer surface of the sealing disc.
[0010] Preferably, two limiting pins are movably embedded on one side of the semi-circular shell, the two limiting pins are symmetrical, and springs are fixedly connected to the outer surfaces of the two limiting pins, and the other ends of the two springs are fixedly connected to the outer surface of the semi-circular shell.
[0011] The technical effect of adopting the above-mentioned further solution is that the limiting pin can be embedded in the limiting hole to limit the semi-circular shell two, thereby improving the stability of the semi-circular shell two, and the spring can connect the limiting pin to prevent it from being lost.
[0012] Preferably, a connecting shaft is movably embedded inside the semi-circular shell, one end of the connecting shaft penetrates through the semi-circular shell, and an auger is fixedly sleeved on the outer surface of the connecting shaft, the auger being movably embedded inside the semi-circular shell.
[0013] The technical effect of adopting the above-mentioned further solution is that the connecting shaft can drive the auger to rotate and transport the internal materials.
[0014] Preferably, a feed pipe is fixedly installed on one outer surface of the semi-circular shell, and a discharge pipe is fixedly installed on the bottom of the side of the semi-circular shell away from the feed pipe.
[0015] The technical effect of adopting the above-mentioned further solution is that the material enters the interior of the screw feeder through the feed pipe and is discharged from the discharge port through the auger.
[0016] Preferably, a mounting plate is fixedly installed at one end of the semi-circular shell, a drive motor is fixedly installed on the outer surface of the mounting plate, a reducer is fixedly installed at the output end of the drive motor, and one end of the connecting shaft is fixedly connected to one side of the reducer.
[0017] The technical effect of adopting the above-mentioned further solution is that the drive motor can drive the connecting shaft to rotate, and then the internal auger can convey materials.
[0018] Preferably, a fixing plate is fixedly installed on the outer surface of the center of the semi-circular shell, a purification box is fixedly installed on the top of the fixing plate, a through groove is opened on one side of the purification box, and a sealing plate is movably embedded in the through groove.
[0019] The technical advantages of adopting the above-mentioned further solution are: the fixed plate facilitates the installation of the purification box, and the sealing plate allows for the replacement of the adsorption material inside the purification box, thereby improving the adsorption and purification effect.
[0020] Preferably, a telescopic hose is fixedly installed on the upper side of one side of the purification box, and a fixing ring is movably sleeved on one end of the telescopic hose.
[0021] The technical effect of adopting the above-mentioned further solution is that one end of the telescopic hose is connected to the connecting pipe through a fixing ring, and the telescopic hose can be retracted when the semi-circular shell is disassembled.
[0022] Preferably, a connecting pipe is fixedly installed at the top center of the semi-circular shell 2, and one end of the connecting pipe is threaded into the inside of the fixing ring.
[0023] The technical effect of adopting the above-mentioned further solution is that the connecting pipe can transmit the harmful gases generated during cleaning to the interior of the purification chamber for purification treatment.
[0024] Preferably, an air pump is fixedly installed on the lower side of the purification box, and an exhaust pipe is fixedly installed on the output end of the air pump.
[0025] The technical effect of adopting the above-mentioned further solution is: when the air pump is turned on, harmful gases enter the interior of the telescopic hose through the connecting pipe, and then enter the interior of the purification chamber through the telescopic hose.
[0026] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0027] 1. In this utility model, when the screw feeder is blocked or needs to be cleaned, the two limiting pins are pulled out from the inside of the limiting hole, and then the handle is pulled to separate the semi-circular shell 2 from the semi-circular shell 1, so that the auger inside the semi-circular shell 1 can be cleaned. T-shaped plates are fixedly installed on both sides of the bottom of the semi-circular shell 2. The two T-shaped plates are movably embedded in the inside of the T-shaped slide groove, which can not only improve the stability of the semi-circular shell 2, but also improve the sealing performance and prevent material leakage during transportation. A semi-circular clamping plate is fixedly installed at one end of the semi-circular shell 2. The semi-circular clamping plate is movably embedded in the inside of the semi-circular clamping groove, which improves the connection between the semi-circular shell 2 and the semi-circular shell 1. The two springs can connect the limiting pins to prevent the limiting pins from being lost.
[0028] 2. In this utility model, harmful gases are generated during cleaning. When the air pump is turned on, the harmful gases enter the interior of the telescopic hose through the connecting pipe, and then enter the interior of the purification box through the telescopic hose. The interior of the purification box is filled with adsorption materials with high adsorption capacity such as activated carbon and zeolite to purify and filter the harmful gases. The gases are then discharged through the exhaust pipe. The adsorption material inside the purification box can be replaced by opening the sealing plate to improve the adsorption and purification effect. One end of the telescopic hose is connected to the connecting pipe through a fixing ring. When the semi-circular shell is disassembled, the telescopic hose can be retracted. Attached Figure Description
[0029] Figure 1 This utility model provides a structural schematic diagram of a screw feeder for fluorochemical applications;
[0030] Figure 2This utility model provides a side view of a screw feeder for fluorochemical applications.
[0031] Figure 3 This utility model provides an exploded structural diagram of a screw feeder for fluorochemical applications;
[0032] Figure 4 This utility model proposes a screw feeder for fluorochemical applications. Figure 3 Enlarged structural diagram at point A in the middle.
[0033] Legend:
[0034] 1. Semicircular shell one; 101. Feed pipe; 102. Connecting shaft; 1021. Screwdriver; 103. Reducer; 104. Drive motor; 105. Mounting plate; 106. Semicircular shell two; 107. Connecting pipe; 108. Fixing plate; 109. Purification box; 110. Air pump; 111. Exhaust pipe; 112. Through groove; 113. Sealing plate; 114. Telescopic hose; 115. Fixing ring; 116. Handle; 117. Sealing circular plate; 118. Discharge pipe; 119. Semicircular slot; 120. T-shaped slide; 121. Semicircular retaining plate; 122. T-shaped plate; 123. Limiting hole; 124. Limiting pin; 125. Spring. Detailed Implementation
[0035] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0036] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0037] Example 1, such as Figure 1-4As shown, this utility model provides a screw feeder for fluorochemicals, comprising: a semi-circular shell 1 and a semi-circular shell 2 106. Two T-shaped grooves 120 are symmetrically arranged on one side of the semi-circular shell 1. A semi-circular slot 119 is also provided on one side of the semi-circular shell 1. The device further includes: two T-shaped plates 122, both fixedly installed at the bottom of the semi-circular shell 2 106, with limiting holes 123 on the opposite side of each T-shaped plate 122; a semi-circular slot 121, fixedly installed on one side of the semi-circular shell 2 106; a sealing circular plate 117, fixedly installed on the side of the semi-circular shell 2 106 away from the semi-circular slot 121; a handle 116, fixedly installed on the outer surface of the sealing circular plate 117; and two movably fitted limiting pins 124 on one side of the semi-circular shell 1, the two limiting pins 124 being symmetrically arranged. Springs 125 are fixedly connected to the outer surface of pins 124, and the other ends of the two springs 125 are fixedly connected to the outer surface of the semi-circular shell 1. A connecting shaft 102 is movably embedded inside the semi-circular shell 1. One end of the connecting shaft 102 passes through the semi-circular shell 1. An auger 1021 is fixedly sleeved on the outer surface of the connecting shaft 102. The auger 1021 is movably embedded inside the semi-circular shell 1. A feed pipe 101 is fixedly installed on one outer surface of the semi-circular shell 1. A discharge pipe 118 is fixedly installed on the bottom of the side of the semi-circular shell 1 away from the feed pipe 101. A mounting plate 105 is fixedly installed at one end of the semi-circular shell 1. A drive motor 104 is fixedly installed on the outer surface of the mounting plate 105. A reducer 103 is fixedly installed at the output end of the drive motor 104. One end of the connecting shaft 102 is fixedly connected to one side of the reducer 103.
[0038] In this embodiment, when the screw feeder is blocked or needs to be cleaned, the two limiting pins 124 are pulled out from the inside of the limiting hole 123. Then, the handle 116 is used to pull the semi-circular housing 106 apart from the semi-circular housing 1, so that the auger 1021 inside the semi-circular housing 1 can be cleaned. T-shaped plates 122 are fixedly installed on both sides of the bottom of the semi-circular housing 106. The two T-shaped plates 122 are movably embedded in the inside of the T-shaped groove 120, which can not only improve the stability of the semi-circular housing 106, but also improve the sealing performance and prevent leakage during material transportation. A semi-circular clamping plate 121 is fixedly installed at one end of the semi-circular housing 106. The semi-circular clamping plate 121 is movably embedded in the inside of the semi-circular clamping groove 119, which improves the connection between the semi-circular housing 106 and the semi-circular housing 1. The two springs 125 can connect the limiting pins 124 to prevent the limiting pins 124 from being lost.
[0039] Example 2, as Figure 1-4As shown, a fixing plate 108 is fixedly installed on the outer surface of the center of the semi-circular shell 1. A purification box 109 is fixedly installed on the top of the fixing plate 108. A through groove 112 is opened on one side of the purification box 109. A sealing plate 113 is movably embedded in the through groove 112. A telescopic hose 114 is fixedly installed on the upper side of one side of the purification box 109. A fixing ring 115 is movably sleeved on one end of the telescopic hose 114. A connecting pipe 107 is fixedly installed at the center of the top of the semi-circular shell 106. One end of the connecting pipe 107 is threaded into the inside of the fixing ring 115. An air pump 110 is fixedly installed on the lower side of one side of the purification box 109. An exhaust pipe 111 is fixedly installed at the output end of the air pump 110.
[0040] In this embodiment, harmful gases are generated during cleaning. When the air pump 110 is turned on, the harmful gases enter the interior of the telescopic hose 114 through the connecting pipe 107, and then enter the interior of the purification box 109 through the telescopic hose 114. The interior of the purification box 109 is filled with adsorption materials with high adsorption capacity such as activated carbon and zeolite to purify and filter the harmful gases, and then discharge them through the exhaust pipe 111. Opening the sealing plate 113 allows the adsorption material inside the purification box 109 to be replaced, thereby improving the adsorption and purification effect. One end of the telescopic hose 114 is connected to the connecting pipe 107 through the fixing ring 115. When the semi-circular shell 106 is disassembled, the telescopic hose 114 can be retracted.
[0041] Working principle: When the screw feeder is clogged or needs internal cleaning, pull the two limit pins 124 out of the limit hole 123, and then pull the handle 116 to separate the semi-circular housing 106 from the semi-circular housing 1, so that the auger 1021 inside the semi-circular housing 1 can be cleaned. T-shaped plates 122 are fixedly installed on both sides of the bottom of the semi-circular housing 106. The two T-shaped plates 122 are movably embedded inside the T-shaped groove 120, which not only improves the stability of the semi-circular housing 106 but also improves the sealing performance, preventing leakage during material transportation. A semi-circular clamping plate 121 is fixedly installed at one end of the semi-circular housing 106. The semi-circular clamping plate 121 is movably embedded inside the semi-circular clamping groove 119, improving the connection between the semi-circular housing 106 and the semi-circular housing 1. The two springs 125 can connect to the limit pin 124 to prevent the limit pin 124 from being lost. Harmful gases are generated during cleaning. When the air pump 110 is turned on, the harmful gases enter the interior of the telescopic hose 114 through the connecting pipe 107, and then enter the interior of the purification box 109 through the telescopic hose 114. The interior of the purification box 109 is filled with adsorption materials with high adsorption capacity such as activated carbon and zeolite to purify and filter the harmful gases, and then discharge them through the exhaust pipe 111. Opening the sealing plate 113 allows the adsorption material inside the purification box 109 to be replaced to improve the adsorption and purification effect. One end of the telescopic hose 114 is connected to the connecting pipe 107 through the fixing ring 115. When the semi-circular shell 106 is disassembled, the telescopic hose 114 can be retracted.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A screw feeder for fluorochemical applications, comprising: The semicircular shell one (1) and the semicircular shell two (106) are provided. Two T-shaped grooves (120) are provided on one side of the semicircular shell one (1), and the two T-shaped grooves (120) are symmetrical to each other. A semicircular slot (119) is provided on one side of the semicircular shell one (1). The feature is that it further includes: Two T-shaped plates (122) are fixedly installed at the bottom of the semi-circular shell (106), and limit holes (123) are provided on one side of the opposite side of the two T-shaped plates (122); A semi-circular retaining plate (121) is fixedly installed on one side of the semi-circular housing (106); A sealing circular plate (117) is fixedly installed on the side of the semi-circular shell (106) away from the semi-circular retaining plate (121); The handle (116) is fixedly installed on the outer surface of the sealing disc (117).
2. The screw feeder for fluorochemicals according to claim 1, characterized in that: Two limiting pins (124) are movably embedded on one side of the semi-circular shell (1). The two limiting pins (124) are symmetrical to each other. Springs (125) are fixedly connected to the outer surfaces of the two limiting pins (124). The other ends of the two springs (125) are fixedly connected to the outer surface of the semi-circular shell (1).
3. The screw feeder for fluorochemicals according to claim 1, characterized in that: A connecting shaft (102) is movably embedded inside the semi-circular shell (1). One end of the connecting shaft (102) passes through the semi-circular shell (1). An auger (1021) is fixedly sleeved on the outer surface of the connecting shaft (102). The auger (1021) is movably embedded inside the semi-circular shell (1).
4. The screw feeder for fluorochemicals according to claim 1, characterized in that: A feed pipe (101) is fixedly installed on one outer surface of the semi-circular shell (1), and a discharge pipe (118) is fixedly installed on the bottom of the side of the semi-circular shell (1) away from the feed pipe (101).
5. A screw feeder for fluorochemicals according to claim 3, characterized in that: One end of the semi-circular shell (1) is fixedly mounted with an mounting plate (105), and a drive motor (104) is fixedly mounted on the outer surface of the mounting plate (105). A reducer (103) is fixedly mounted on the output end of the drive motor (104), and one end of the connecting shaft (102) is fixedly connected to one side of the reducer (103).
6. The screw feeder for fluorochemicals according to claim 1, characterized in that: A fixing plate (108) is fixedly installed on the outer surface of the center of the semi-circular shell (1). A purification box (109) is fixedly installed on the top of the fixing plate (108). A through groove (112) is opened on one side of the purification box (109). A sealing plate (113) is movably embedded inside the through groove (112).
7. A screw feeder for fluorochemicals according to claim 6, characterized in that: A telescopic hose (114) is fixedly installed on the upper side of one side of the purification box (109), and a fixing ring (115) is movably sleeved on one end of the telescopic hose (114).
8. A screw feeder for fluorochemicals according to claim 7, characterized in that: A connecting pipe (107) is fixedly installed at the top center of the semi-circular shell (106), and one end of the connecting pipe (107) is threaded into the inside of the fixing ring (115).
9. A screw feeder for fluorochemicals according to claim 6, characterized in that: An air pump (110) is fixedly installed on the lower side of the purification box (109), and an exhaust pipe (111) is fixedly installed at the output end of the air pump (110).