Circulating heating mechanism of spray dryer

Abstract

The utility model discloses a circulating heating mechanism of a spray dryer, which comprises a spray dryer main body, the top of the spray dryer main body is provided with a feed pipe, and the bottom of the spray dryer main body is provided with a discharge pipe; the circulating heating structure is used for circulating heating of the spray dryer body and comprises a heating assembly installed on the side face of the spray dryer body. By arranging the air blower, the electric heating wire, the circulating pipe and the ventilation pipe, circulating heating of the interior of the spray dryer body can be achieved, then hot air circulation is formed, the effect of effectively saving energy is achieved, meanwhile, the filtering assembly is installed on the circulating pipe, and under the filtering effect of the filtering net, the energy is saved. According to the circulating gas filter, impurities in circulating gas can be filtered, and meanwhile, the filter screen is convenient to disassemble and assemble by arranging the detachable mounting cover, so that the filter screen is convenient to clean or replace, and the practicability of the circulating gas filter is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dryers, in particular to a circulation heating mechanism for a spray dryer. Background Art

[0002] Spray dryer is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow rate and size of the spray hole of the liquid pump can be adjusted to obtain the required spherical particles of a certain size ratio. Spray dryer is a kind of continuous atmospheric pressure dryer. The liquid material is sprayed into a mist with special equipment so that it contacts with hot air and is dried. It is used to dry some heat-sensitive liquids, suspensions and viscous liquids, and is also used to dry fuels, intermediates, soap powder and inorganic salts. Generally, it includes electric blast drying oven, vacuum drying oven, high-speed centrifugal spray dryer, and aseptic spray dryer. The working principle, basic classification, characteristics, technical parameters, application range and operation process of spray dryer are introduced in detail.

[0003] For example, a Chinese patent with publication (announcement) number CN208641778U discloses a progesterone spray dryer, comprising a bottom plate, a spray dryer body is fixedly mounted on the left side of the upper surface of the bottom plate through a support frame, an atomizer is embedded on the top plate of the spray dryer body, a first induced draft fan and an electric heater are fixedly mounted in the middle of the outer wall of the spray dryer body, a spiral tube is arranged in the empty groove, the jet head is embedded on the inner wall of the spray dryer body, an air outlet pipe is arranged on the spray dryer body, the air outlet pipe is connected to the air inlet of a cyclone dust collector, a third induced draft fan is fixedly mounted on the upper part of the outer wall of the spray dryer body, and the air outlet of the third induced draft fan is connected to the induced draft pipe through a circulating air duct.

[0004] Although the above technical solution solves the corresponding technical problem, the above technical solution still has the following defects:

[0005] The above technical solution does not have a filtering function when circulating heating the spray dryer. During the hot air circulation process, the material inside the spray dryer is likely to enter the circulation pipe, thereby affecting the use and reducing the practicality. Utility Model Content

[0006] The purpose of the utility model is to provide a circulation heating mechanism for a spray dryer, which can not only realize circulation heating inside the spray dryer body by arranging a blower, an electric heating wire, a circulation pipe and a ventilation pipe, thereby forming a hot air circulation and playing a role in effectively saving energy, but also a filter assembly is installed on the circulation pipe, and impurities in the circulating gas can be filtered through the filtering effect of the filter net, and at the same time, a detachable installation cover is provided, so that the filter net can be easily disassembled and assembled, thereby facilitating the cleaning or replacement of the filter net, thereby improving the practicality of the utility model.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A circulating heating mechanism for a spray dryer, comprising:

[0009] A spray dryer body, wherein a feed pipe is installed on the top of the spray dryer body, and a discharge pipe is installed on the bottom of the spray dryer body;

[0010] A circulating heating structure for circulating heating of the spray dryer body, the circulating heating structure comprising a heating component installed on the side of the spray dryer body, a blast component installed on the top of the heating component, a circulating pipe interconnected with the spray dryer body installed at the bottom of the heating component, and a filter component installed on the circulating pipe.

[0011] The above-mentioned circulation heating mechanism of the spray dryer, wherein the heating component comprises a heating box fixedly connected to the side of the spray dryer body, and an electric heating wire is installed on the inner wall of the heating box.

[0012] The above-mentioned spray dryer circulation heating mechanism, wherein the blowing assembly includes a blower fixedly connected to the top of the heating box, a ventilation pipe is installed on the top of the blower, and the other end of the ventilation pipe is interconnected with the side of the spray dryer body.

[0013] The above-mentioned spray dryer circulation heating mechanism, wherein the filter assembly includes a filter shell fixedly connected to the circulation pipe, a filter screen matching the filter shell is arranged inside the filter shell, and a maintenance port for fixing the filter screen is installed on the side of the filter shell and at a position corresponding to the filter screen.

[0014] In the above-mentioned circulating heating mechanism of the spray dryer, a limiting groove matching with the filter screen is provided on the inner wall of the filter shell and at a position corresponding to the filter screen.

[0015] The above-mentioned circulation heating mechanism of the spray dryer, wherein a mounting cover is provided on the side of the maintenance port, a sealing ring matching the maintenance port is fixedly connected to the side of the mounting cover close to the maintenance port, and the side of the mounting cover close to the maintenance port is sealed and connected to the maintenance port through the sealing ring.

[0016] The utility model has at least the following beneficial effects:

[0017] In the utility model, a circulation heating mechanism for a spray dryer is realized, which can not only realize circulation heating inside the spray dryer body by arranging a blower, an electric heating wire, a circulation pipe and a ventilation pipe, thereby forming a hot air circulation and playing a role in effectively saving energy, but also a filter assembly is installed on the circulation pipe, and impurities in the circulating gas can be filtered through the filtering effect of the filter net, and at the same time, a detachable installation cover is provided, so that the filter net can be easily disassembled and assembled, thereby facilitating the cleaning or replacement of the filter net, thereby improving the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the circulating heating mechanism of the spray dryer of the utility model;

[0020] Figure 2 It is a cross-sectional structural diagram of the circulating heating mechanism of the spray dryer of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the circulating heating structure in the circulating heating mechanism of the spray dryer of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Description of Figure Numbers:

[0024] 1. Spray dryer body; 2. Circulation heating structure;

[0025] 101. feed pipe; 102. discharge pipe;

[0026] 201, heating component; 202, air blowing component; 203, circulation pipe; 204, filtering component;

[0027] 2011, heating box; 2012, heating wire;

[0028] 2021. Blower; 2022. Ventilation pipe;

[0029] 2041. filter housing; 2042. filter screen; 20421. limit groove; 2043. maintenance port; 2044. installation cover; 20441. sealing ring. DETAILED DESCRIPTION

[0030] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Please refer to Figures 1 to 4 As shown, an embodiment of the utility model provides a circulation heating mechanism for a spray dryer, comprising: a spray dryer body 1 and a circulation heating structure 2 for circulation heating of the spray dryer body 1;

[0032] Please refer to Figures 1 to 4 As shown, a feed pipe 101 is installed on the top of the spray dryer body 1, and a discharge pipe 102 is installed on the bottom of the spray dryer body 1;

[0033] Please refer to Figures 1 to 4 As shown, the circulating heating structure 2 includes a heating component 201 installed on the side of the spray dryer body 1, a blast component 202 is installed on the top of the heating component 201, a circulating pipe 203 interconnected with the spray dryer body 1 is installed at the bottom of the heating component 201, and a filter component 204 is installed on the circulating pipe 203;

[0034] Please refer to Figures 1 to 4 As shown, the heating assembly 201 includes a heating box 2011 fixedly connected to the side of the spray dryer body 1, and a heating wire 2012 is installed on the inner wall of the heating box 2011.

[0035] Please refer to Figures 1 to 4 As shown, the air blowing assembly 202 includes a blower 2021 fixedly connected to the top of the heating box 2011, a ventilation pipe 2022 is installed on the top of the blower 2021, and the other end of the ventilation pipe 2022 is interconnected with the side of the spray dryer body 1.

[0036] Please refer to Figures 1 to 4 As shown, the filter assembly 204 includes a filter shell 2041 fixedly connected to the circulation pipe 203, the interior of the filter shell 2041 is provided with a filter screen 2042 matching the filter shell 2041, and a maintenance port 2043 for fixing the filter screen 2042 is installed on the side of the filter shell 2041 and at the position corresponding to the filter screen 2042.

[0037] Please refer to Figures 1 to 4As shown, a limiting groove 20421 matching with the filter screen 2042 is provided on the inner wall of the filter housing 2041 and at a position corresponding to the filter screen 2042;

[0038] By adopting the above technical solution, the limiting groove 20421 is provided to limit the filter screen 2042, thereby increasing the stability of the filter screen 2042 installed inside the filter shell 2041.

[0039] Please refer to Figures 1 to 4 As shown, a mounting cover 2044 is disposed on the side of the maintenance port 2043, and a sealing ring 20441 matching the maintenance port 2043 is fixedly connected to the side of the mounting cover 2044 close to the maintenance port 2043, and the side of the mounting cover 2044 close to the maintenance port 2043 is sealed and connected to the maintenance port 2043 through the sealing ring 20441;

[0040] By adopting the above technical solution, the sealing performance of the installation cover 2044 installed on the side of the filter shell 2041 is increased by providing the sealing ring 20441.

[0041] The working principle of the utility model is: not only can the circulation heating inside the spray dryer body 1 be realized by setting the blower 2021, the electric heating wire 2012, the circulation pipe 203 and the ventilation pipe 2022, thereby forming a hot air circulation and playing an effective role in saving energy, but also a filter assembly 204 is installed on the circulation pipe 203, and the impurities in the circulating gas can be filtered through the filtering effect of the filter 2042. At the same time, by setting a detachable installation cover 2044, the filter 2042 can be easily disassembled and assembled, so it is convenient to clean or replace the filter 2042, thereby improving the practicality of the utility model.

[0042] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A spray dryer circulation heating mechanism, characterized in that: include: A spray dryer body (1), wherein a feed pipe (101) is installed at the top of the spray dryer body (1), and a discharge pipe (102) is installed at the bottom of the spray dryer body (1); A circulating heating structure (2) for circulating heating the spray dryer body (1), the circulating heating structure (2) comprising a heating component (201) mounted on the side of the spray dryer body (1), a blast component (202) mounted on the top of the heating component (201), a circulating pipe (203) in communication with the spray dryer body (1) mounted on the bottom of the heating component (201), and a filtering component (204) mounted on the circulating pipe (203).

2. A spray dryer circulation heating mechanism according to claim 1, characterized in that: The heating component (201) comprises a heating box (2011) fixedly connected to the side of the spray dryer body (1), and an electric heating wire (2012) is installed on the inner wall of the heating box (2011).

3. A spray dryer circulation heating mechanism according to claim 2, characterized in that: The air blowing assembly (202) comprises a blower (2021) fixedly connected to the top of the heating box (2011), a ventilation pipe (2022) is installed on the top of the blower (2021), and the other end of the ventilation pipe (2022) is interconnected with the side of the spray dryer body (1).

4. A spray dryer circulation heating mechanism according to claim 3, characterized in that: The filter assembly (204) comprises a filter shell (2041) fixedly connected to the circulation pipe (203); a filter screen (2042) matching the filter shell (2041) is arranged inside the filter shell (2041); and a maintenance port (2043) for fixing the filter screen (2042) is installed on the side of the filter shell (2041) and at a position corresponding to the filter screen (2042).

5. A spray dryer circulation heating mechanism according to claim 4, characterized in that: A limiting groove (20421) matching the filter screen (2042) is provided on the inner wall of the filter housing (2041) at a position corresponding to the filter screen (2042).

6. A spray dryer circulation heating mechanism according to claim 5, characterized in that: A mounting cover (2044) is provided on the side of the maintenance port (2043); a sealing ring (20441) matching the maintenance port (2043) is fixedly connected to the side of the mounting cover (2044) close to the maintenance port (2043); and a side of the mounting cover (2044) close to the maintenance port (2043) is sealedly connected to the maintenance port (2043) via the sealing ring (20441).

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