An improved powder feeding device

Abstract

The utility model discloses an improved powder feeding device, which includes a feeding pipe arranged vertically, a feeding channel running vertically through the core of the feeding pipe, the upper end opening of the feeding channel is a feeding port, and the lower end opening of the feeding channel is a discharge port; the outer wall of the feeding pipe is equipped with a heating and heat preservation component surrounding the outer periphery of the feeding pipe; the heating and heat preservation component includes an outer half pipe with a semicircular vertical cross section and a spiral extension, the outer half pipe is sealed and connected to the outer wall of the feeding pipe, and a heat transfer oil channel in a spiral shape is formed between the outer half pipe and the outer wall of the feeding pipe; the heating and heat preservation component also includes a heat preservation layer covering the outer periphery of the outer half pipe, one end of the heat transfer oil channel is connected to a heat transfer oil inlet extending to the outside of the heat transfer layer, and the other end of the heat transfer oil channel is connected to a heat transfer oil outlet extending to the outside of the heat transfer layer. Through the above structural design, the utility model has the advantages of novel structural design and diverse functions, and has material heating function and material heat preservation function.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to an improved powder feeding device. Background Art

[0002] For a reactor or a stirrer, a feeding pipe device is often installed at the feeding port thereof; during operation, the materials after batching are fed into the reactor or a stirrer through the feeding pipe for reaction or stirring.

[0003] Among them, the patent number is: ZL201920926185.7, and the patent name is: A Chinese utility model patent for a feeding pipe and a feeding device, which discloses a feeding device; specifically, the feeding pipe is provided with a feeding pipe body, the feeding pipe body is a tubular structure with openings at both ends, the feeding pipe body is provided with a first rigid pipe, a flexible pipe, and a second rigid pipe, one end of the first rigid pipe is connected to one end of the flexible pipe, and the other end of the flexible pipe is connected to one end of the second rigid pipe.

[0004] It should be pointed out that the above-mentioned feeding pipe has the following defects, specifically:

[0005] Defect 1. For materials that are easy to stick together in low temperature environment, due to the lack of corresponding heating device, that is, no heating function, it is easy to cause the material to be blocked in the pipe in low temperature environment;

[0006] Defect 2: For materials with feeding temperature requirements, due to the lack of corresponding insulation structure, that is, it does not have insulation function, during the material feeding operation, the feeding pipe will easily cause the material temperature to dissipate, and it is difficult to ensure the constant temperature of the fed material. Utility Model Content

[0007] The utility model aims to provide an improved powder feeding device in view of the deficiencies in the prior art. The improved powder feeding device has novel structural design, diverse functions, and has material heating function and material heat preservation function.

[0008] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0009] An improved powder feeding device comprises a feeding pipe arranged vertically, a feeding channel running vertically through the core of the feeding pipe is provided, the upper end opening of the feeding channel is a feeding port, and the lower end opening of the feeding channel is a discharge port;

[0010] The outer wall of the feeding pipe is equipped with a heating and heat preservation component surrounding the outer periphery of the feeding pipe;

[0011] The heating and heat preservation component comprises an outer half pipe with a semicircular vertical cross section and a spiral extension, the outer half pipe is sealed and connected to the outer wall of the feeding pipe, and a spiral heat transfer oil channel is formed between the outer half pipe and the outer wall of the feeding pipe;

[0012] The heating and insulation component also includes an insulation layer covering the outer half of the outer tube, one end of the heat transfer oil channel is connected to a heat transfer oil inlet extending to the outside of the insulation layer, and the other end of the heat transfer oil channel is connected to a heat transfer oil outlet extending to the outside of the insulation layer.

[0013] Wherein, the outer periphery of the thermal insulation layer is coated with an outer covering layer.

[0014] Wherein, the thermal insulation layer is a rock wool layer.

[0015] Wherein, the upper end of the feeding pipe is provided with a liquid feeding port and a vacuum port which are respectively connected with the feeding channel.

[0016] The improved powder feeding device comprises at least two feeding pipes arranged in sequence from top to bottom, two adjacent feeding pipes are connected by a flange, and the outer wall of each feeding pipe is respectively equipped with a heating and heat preservation component.

[0017] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0018] 1. For powder materials that are prone to sticking and agglomerating in low temperature environments, the heat transfer oil channel can be fed with heated heat transfer oil. During this process, the heated heat transfer oil passing through the heat transfer oil channel will transfer heat to the feeding pipe, thereby heating the powder materials passing through the feeding pipe to avoid the phenomenon of material sticking and agglomerating due to low temperature;

[0019] 2. For powder materials with feeding temperature requirements, the insulation layer located outside the feeding pipe can play the role of heat insulation, thereby realizing the material insulation function;

[0020] 3. Therefore, the improved powder feeding device of the utility model has the advantages of novel structural design and diverse functions, and has material heating function and material heat preservation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of the "A" position is shown.

[0024] exist Figure 1 and Figure 2 Included are:

[0025] 1-feeding pipe; 2-feeding channel; 3-feeding port; 4-discharging port; 5-heating and heat preservation component; 51-outer half pipe; 52-heat transfer oil channel; 53-insulation layer; 54-heat transfer oil inlet; 55-heat transfer oil outlet; 56-outer cladding layer; 6-liquid feeding port; 7-vacuum port; 8-flange. DETAILED DESCRIPTION

[0026] The present invention will be described below in conjunction with specific implementation methods.

[0027] Embodiment 1, as Figure 1 and Figure 2 As shown, an improved powder feeding device includes a feeding pipe 1 arranged vertically, a feeding channel 2 running vertically through the core of the feeding pipe 1, the upper end opening of the feeding channel 2 is a feeding port 3, and the lower end opening of the feeding channel 2 is a discharge port 4. It should be explained that the feeding pipe 1 of the first embodiment is a metal tube structure.

[0028] Among them, Figure 1 and Figure 2 As shown, the outer wall of the feeding pipe 1 is equipped with a heating and heat preservation component 5 surrounding the outer periphery of the feeding pipe 1.

[0029] Specifically, Figure 2 As shown, the heating and insulation component 5 includes an outer half pipe 51 with a semicircular vertical cross-section and a spiral extension. The outer half pipe 51 is sealed and connected to the outer wall of the feeding pipe 1, and a spiral heat transfer oil channel 52 is formed between the outer half pipe 51 and the outer wall of the feeding pipe 1.

[0030] Further, such as Figure 2 As shown, the heating and insulation component 5 also includes an insulation layer 53 covering the outer periphery of the outer half pipe 51, one end of the heat transfer oil channel 52 is connected to a heat transfer oil inlet 54 extending to the outside of the insulation layer 53, and the other end of the heat transfer oil channel 52 is connected to a heat transfer oil outlet 55 extending to the outside of the insulation layer 53.

[0031] It should be explained that the insulation layer 53 of the first embodiment can be made of rock wool material, that is, the insulation layer 53 is a rock wool layer; of course, the material used for the above insulation layer 53 does not constitute a limitation to the first embodiment, that is, the insulation layer 53 of the first embodiment can also be made of other insulation materials.

[0032] When the improved powder feeding device of the first embodiment is used to feed powder materials into a reactor or agitator, the powder materials enter the feeding channel 2 of the feeding pipe 1 from the feeding port 3 of the feeding pipe 1, and the powder materials are discharged from the discharge port 4 after passing through the feeding channel 2.

[0033] It should be emphasized that the heating and heat preservation assembly 5 installed on the periphery of the feeding pipe 1 of the first embodiment has the following functions, specifically:

[0034] 1. For powder materials that are prone to adhesion and agglomeration in a low-temperature environment, the heat transfer oil channel 52 located between the outer half pipe 51 and the outer wall of the feeding pipe 1 can be fed with heated heat transfer oil, and the heat transfer oil enters the heat transfer oil channel 52 from the heat transfer oil inlet 54 and is discharged from the heat transfer oil outlet 55. In this process, the heated heat transfer oil passing through the heat transfer oil channel 52 will transfer heat to the feeding pipe 1, thereby heating the powder materials passing through the feeding pipe 1 to avoid the phenomenon of material adhesion and agglomeration due to low temperature; in addition, in the process of auxiliary heating, since the thermal insulation layer 53 can realize the function of heat insulation, that is, the thermal insulation layer 53 can effectively reduce the heat dissipation of the heat transfer oil to the outside, thereby improving the heating efficiency;

[0035] 2. For powder materials with feeding temperature requirements, the insulation layer 53 located on the periphery of the feeding pipe 1 can play a role in heat insulation, that is, it can effectively prevent the loss of powder materials and thus achieve the material insulation function.

[0036] Based on the above, it can be seen that through the above structural design, the improved powder feeding device of the first embodiment has the advantages of novel structural design and diverse functions, and has material heating function and material insulation function. When in use, the material heating function and material insulation function can be selected according to the feeding requirements of the powder material.

[0037] Embodiment 2, as Figure 1 and Figure 2 As shown, the difference between the second embodiment and the first embodiment is that the outer periphery of the thermal insulation layer 53 is coated with an outer covering layer 56; wherein the outer covering layer 56 serves as the outermost protective layer structure of the heating and thermal insulation component 5, which can protect the internal thermal insulation layer 53 and the outer half pipe 51.

[0038] Embodiment 3: The difference between Embodiment 3 and Embodiment 1 is that: the upper end of the feeding pipe 1 is provided with a liquid feeding port 6 and a vacuum port 7 which are respectively connected with the feeding channel 2 .

[0039] As for the vacuum port 7 of the third embodiment, when in use, it can be connected to a vacuum pumping device, that is, it can realize vacuum pumping of the delivered material to improve its use performance.

[0040] For the liquid feeding port 6 of the third embodiment, when in use, liquid material can be added into the feeding channel 2 to meet the use requirements of simultaneously feeding powder material and liquid material. In addition, when the feeding channel 2 needs to be cleaned, water can be directly injected into the feeding channel 2 through the liquid feeding port 6 to meet the use requirements of cleaning.

[0041] Embodiment 4, as Figure 1 As shown, the difference between the fourth embodiment and the first embodiment is that the improved powder feeding device includes at least two feeding pipes 1 arranged in sequence from top to bottom, two adjacent feeding pipes 1 are connected by a flange 8, and the outer wall of each feeding pipe 1 is respectively equipped with a heating and heat preservation component 5.

[0042] For the improved powder feeding device of the fourth embodiment, when in use, a plurality of feeding pipes 1 can be connected in sequence to meet the requirement of a longer feeding length, so as to improve applicability.

[0043] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An improved powder feeding device, comprising a feeding pipe (1) arranged vertically, a feeding channel (2) penetrating vertically is provided in the core of the feeding pipe (1), the upper end opening of the feeding channel (2) is a feeding port (3), and the lower end opening of the feeding channel (2) is a discharge port (4); Features: The outer wall of the feeding pipe (1) is provided with a heating and heat-insulating component (5) surrounding the outer periphery of the feeding pipe (1); The heating and heat-insulating component (5) comprises an outer half-tube (51) having a semicircular vertical cross-section and extending in a spiral shape, the outer half-tube (51) being sealedly connected to the outer wall of the feeding pipe (1), and a heat-conducting oil channel (52) in a spiral shape is formed between the outer half-tube (51) and the outer wall of the feeding pipe (1); The heating and heat-insulating component (5) further comprises a heat-insulating layer (53) covering the outer periphery of the outer half tube (51); one end of the heat-conducting oil channel (52) is connected to a heat-conducting oil inlet (54) extending to the outside of the heat-insulating layer (53); and the other end of the heat-conducting oil channel (52) is connected to a heat-conducting oil outlet (55) extending to the outside of the heat-insulating layer (53).

2. The improved powder feeding device according to claim 1, characterized in that: The outer periphery of the thermal insulation layer (53) is coated with an outer covering layer (56).

3. The improved powder feeding device according to claim 1, characterized in that: The thermal insulation layer (53) is a rock wool layer.

4. The improved powder feeding device according to claim 1, characterized in that: The upper end of the feeding pipe (1) is provided with a liquid feeding port (6) and a vacuum port (7) which are respectively connected to the feeding channel (2).

5. The improved powder feeding device according to claim 4, characterized in that: The improved powder feeding device comprises at least two feeding pipes (1) arranged in sequence from top to bottom, two adjacent feeding pipes (1) are connected via a flange (8), and the outer wall of each feeding pipe (1) is respectively provided with a heating and heat preservation component (5).

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