Phosphogypsum drying system

Abstract

The utility model relates to the field of ardealite drying, in particular to an ardealite drying system which comprises a hot blast stove, one end of the hot blast stove is connected with a drying machine through a pipeline, and one end of the drying machine is connected with an exhaust fan through a pipeline. The drying machine comprises a drying chamber, a discharging opening formed in the drying chamber, an air inlet formed in the bottom of the drying chamber and a rack installed on the side wall of the drying chamber, a filtering part is arranged at the top of the drying chamber and composed of a filtering box and a filtering assembly, and the filtering assembly is installed in an inner cavity of the filtering box; according to the drying machine, the filtering part is arranged on the drying machine, waste gas entering the filtering box is filtered through the filtering box in the filtering part and the filtering assembly in the filtering box, dust particles are blocked by the first filtering plate and the second filtering plate, and the dust particles are prevented from being directly discharged to the outside to cause harm to the environment.

Description

Technical Field

[0001] The utility model relates to the field of phosphogypsum drying, in particular to a phosphogypsum drying system. Background Art

[0002] Phosphogypsum is a common industrial waste. The process of drying phosphogypsum can help improve its utilization rate and reduce processing costs. The phosphogypsum drying system is a device used to dry phosphogypsum, usually composed of a dryer, a hot air furnace, an exhaust system and conveying equipment. The hot air furnace generates a high-temperature hot air flow, which is transmitted to the dryer to exchange heat with the phosphogypsum, and then the hot air containing moisture is discharged through the exhaust system, thereby realizing the drying process of the phosphogypsum.

[0003] Therefore, the exhausted hot air will carry some dust particles, and the waste gas containing these dust particles and pollutants is directly discharged into the atmosphere, which may cause environmental pollution and harm to human health. Utility Model Content

[0004] Based on the above description, the utility model provides a phosphogypsum drying system to solve the problem that the waste gas directly discharged from the existing phosphogypsum drying system is likely to pollute the environment.

[0005] The utility model solves the above technical problems with the following technical solutions: a phosphogypsum drying system, comprising a hot air furnace;

[0006] One end of the hot air furnace is connected to a dryer through a pipeline, and one end of the dryer is connected to an exhaust fan through a pipeline. The dryer includes a drying chamber, a discharge port arranged on the drying chamber, an air inlet arranged at the bottom of the drying chamber, and a frame installed on the side wall of the drying chamber;

[0007] A filter part is arranged on the top of the drying chamber. The filter part is composed of a filter box and a filter assembly. The filter assembly is installed in the inner cavity of the filter box.

[0008] Furthermore, the filter assembly includes a first filter plate, a round rod, a second filter plate and a receiving plate, the receiving plate is fixedly mounted on the inner wall of the filter box, the second filter plate is mounted on the receiving plate, the round rod is fixedly mounted on the bottom of the first filter plate, and one end of the round rod away from the first filter plate is movably fitted on the top surface of the first filter plate.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, a cover plate is provided on the top of the filter box, a sleeve is fixedly connected to the bottom of the cover plate, the outer wall of the sleeve is threadedly connected to the inner wall of the filter box, and one end of the sleeve away from the cover plate is attached to the top surface of the first filter plate.

[0011] Furthermore, an exhaust port is provided on the top of the cover plate, and the bottom of the cover plate is movably attached to the top of the filter box, and the top view of the filter box is designed to be circular.

[0012] Furthermore, the filter part also includes an adjustment component, which consists of a bearing, a vertical rod, a connecting rod and a box body. The bearing is fixedly installed on the bottom of the second filter plate, one end of the vertical rod is movably connected to the second filter plate through the bearing, and one end of the vertical rod away from the second filter plate movably passes through the bottom of the filter box.

[0013] Furthermore, one end of the connecting rod is fixedly connected to the side wall of the vertical rod, and one end of the connecting rod away from the vertical rod is fixedly connected to the side wall of the box body, and the bottom of the box body is movably fitted with the bottom of the inner cavity of the filter box.

[0014] Furthermore, an air guide pipe is provided at the bottom of the filter box, one end of the air guide pipe is connected to an air guide hole provided at the bottom of the filter box, and the box body is located directly above the air guide hole.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model sets a filter part on the dryer to filter the exhaust gas entering the filter box by using the filter box in the filter part and the filter assembly in the filter box, so that the dust particles are blocked by the first filter plate and the second filter plate, thereby preventing the dust particles from being directly discharged to the outside and causing harm to the environment.

[0017] 2. By setting an adjustment component on the second filter plate, the bearing in the adjustment component is used to facilitate the rotation of the vertical rod, so that the vertical rod drives the box body on the connecting rod to rotate, so that the box body can be used to collect the dust particles that fall during the disassembly process to prevent them from falling into the air guide holes and entering the interior of the dryer to contaminate the dried phosphogypsum material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a phosphogypsum drying system provided in an embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the dryer in the utility model;

[0020] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the filter box in the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the adjustment component in the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Hot air furnace; 2. Dryer; 201. Drying chamber; 202. Frame; 203. Discharge port; 204. Air inlet; 3. Exhaust fan; 4. Filter unit; 401. Filter box; 402. Filter assembly; 4021. First filter plate; 4022. Round rod; 4023. Second filter plate; 4024. Receiver plate; 403. Adjustment assembly; 4031. Bearing; 4032. Vertical rod; 4033. Connecting rod; 4034. Box body; 404. Cover plate; 405. Exhaust port; 406. Air duct. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the technical product is usually placed when in use. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technology. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Therefore, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this technology, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0029] See also Figure 1 and Figure 2 , a phosphogypsum drying system, comprising a hot air furnace 1;

[0030] One end of the hot air furnace 1 is connected to a dryer 2 through a pipeline, and one end of the dryer 2 is connected to an exhaust fan 3 through a pipeline. The dryer 2 includes a drying chamber 201, a discharge port 203 arranged on the drying chamber 201, an air inlet 204 arranged at the bottom of the drying chamber 201, and a frame 202 installed on the side wall of the drying chamber 201;

[0031] A filter unit 4 is disposed on the top of the drying chamber 201 . The filter unit 4 is composed of a filter box 401 and a filter assembly 402 . The filter assembly 402 is installed in the inner cavity of the filter box 401 .

[0032] A filter unit 4 is added at the outlet of the dryer 2, and a filter assembly 402 in the filter unit 4 is used to filter and remove dust from the gas discharged to the outside, thereby filtering out particulate impurities and preventing them from being directly discharged into the outside environment.

[0033] See also Figure 3 and Figure 4 The filter assembly 402 of this embodiment includes a first filter plate 4021, a round rod 4022, a second filter plate 4023 and a receiving plate 4024. The receiving plate 4024 is fixedly mounted on the inner wall of the filter box 401, the second filter plate 4023 is mounted on the receiving plate 4024, the round rod 4022 is fixedly mounted on the bottom of the first filter plate 4021, and one end of the round rod 4022 away from the first filter plate 4021 is movably attached to the top surface of the first filter plate 4021.

[0034] The first filter plate 4021 is an activated carbon plate. The first filter plate 4021 and the second filter plate 4023 cooperate with each other to filter out dust particles to prevent them from being directly discharged into the external environment.

[0035] The second filter plate 4023 and the receiving plate 4024 are movably fitted, and the round rod 4022 and the second filter plate 4023 are movably fitted. When the first filter plate 4021 and the second filter plate 4023 need to be cleaned, the first filter plate 4021 and the second filter plate 4023 can be disassembled by simply taking out the first filter plate 4021 and the second filter plate 4023.

[0036] See also Figure 2 , Figure 3 and Figure 4 In this embodiment, a cover plate 404 is provided on the top of the filter box 401, and a sleeve is fixedly connected to the bottom of the cover plate 404. The outer wall of the sleeve is threadedly connected to the inner wall of the filter box 401, and the end of the sleeve away from the cover plate 404 is attached to the top surface of the first filter plate 4021.

[0037] A sleeve is provided on the cover plate 404 , and is used to connect with the filter box 401 . The cover plate 404 can be quickly removed by twisting it, so that the filter assembly 402 in the inner cavity of the filter box 401 can be replaced and cleaned conveniently.

[0038] See also Figure 3 and Figure 4 In this embodiment, the top of the cover plate 404 is provided with an exhaust port 405, and the bottom of the cover plate 404 is movably attached to the top of the filter box 401, and the top view of the filter box 401 is designed to be circular.

[0039] An exhaust port 405 is provided on the top of the cover plate 404, and the exhaust port 405 is connected to an air pump through a pipeline to suck the gas in the filter box 401, so as to conveniently discharge the gas to the outside.

[0040] See also Figure 3 and Figure 4 The filter unit 4 of this embodiment also includes an adjustment component 403, which consists of a bearing 4031, a vertical rod 4032, a connecting rod 4033 and a box body 4034. The bearing 4031 is fixedly installed at the bottom of the second filter plate 4023, one end of the vertical rod 4032 is movably connected to the second filter plate 4023 through the bearing 4031, and one end of the vertical rod 4032 away from the second filter plate 4023 movably passes through the bottom of the filter box 401.

[0041] Rotate the vertical rod 4032 to allow the connecting rod 4033 on the vertical rod 4032 to drive the box body 4034 to rotate, and remove the box body 4034 from the air guide hole to facilitate normal air intake. When the filter assembly 402 needs to be disassembled and cleaned, the vertical rod 4032 can be directly rotated to drive the box body 4034 on the connecting rod 4033 back to the top of the air guide hole to block the air guide hole and prevent the dust particles adhered to the second filter plate 4023 from falling into the interior of the air guide hole, allowing them to fall directly into the inner cavity of the box body 4034, so that they can be directly taken out with the second filter plate 4023 to the outside of the filter box 401.

[0042] See also Figure 3 and Figure 4 In this embodiment, one end of the connecting rod 4033 is fixedly connected to the side wall of the vertical rod 4032, and the end of the connecting rod 4033 away from the vertical rod 4032 is fixedly connected to the side wall of the box body 4034, and the bottom of the box body 4034 is movably fitted with the bottom of the inner cavity of the filter box 401.

[0043] See also Figure 3 and Figure 4 In this embodiment, an air guide pipe 406 is provided at the bottom of the filter box 401, one end of the air guide pipe 406 is connected to an air guide hole provided at the bottom of the filter box 401, and the box body 4034 is located directly above the air guide hole.

[0044] An air guide hole is opened at the bottom of the filter box 401 to connect the air guide hole with the air guide pipe 406, so that the gas in the inner cavity of the dryer 2 can enter the interior of the filter box 401 along the air guide hole and the air guide pipe 406 to complete the filtering work, which is more environmentally friendly than direct discharge.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A phosphogypsum drying system, comprising a hot air furnace (1), characterized in that: One end of the hot air furnace (1) is connected to a dryer (2) via a pipeline, and one end of the dryer (2) is connected to an exhaust fan (3) via a pipeline, and the dryer (2) comprises a drying chamber (201), a discharge port (203) arranged on the drying chamber (201), an air inlet (204) arranged at the bottom of the drying chamber (201), and a frame (202) installed on the side wall of the drying chamber (201); A filter unit (4) is provided on the top of the drying chamber (201), and the filter unit (4) is composed of a filter box (401) and a filter assembly (402), and the filter assembly (402) is installed in the inner cavity of the filter box (401).

2. A phosphogypsum drying system according to claim 1, characterized in that: The filter assembly (402) comprises a first filter plate (4021), a round rod (4022), a second filter plate (4023) and a receiving plate (4024); the receiving plate (4024) is fixedly mounted on the inner wall of the filter box (401); the second filter plate (4023) is mounted on the receiving plate (4024); the round rod (4022) is fixedly mounted on the bottom of the first filter plate (4021); and one end of the round rod (4022) away from the first filter plate (4021) is movably fitted on the top surface of the first filter plate (4021).

3. A phosphogypsum drying system according to claim 1, characterized in that: A cover plate (404) is provided on the top of the filter box (401), and a sleeve is fixedly connected to the bottom of the cover plate (404), the outer wall of the sleeve is threadedly connected to the inner wall of the filter box (401), and one end of the sleeve away from the cover plate (404) is attached to the top surface of the first filter plate (4021).

4. A phosphogypsum drying system according to claim 3, characterized in that: The top of the cover plate (404) is provided with an exhaust port (405), and the bottom of the cover plate (404) is movably attached to the top of the filter box (401), and the top view of the filter box (401) is designed to be circular.

5. A phosphogypsum drying system according to claim 3, characterized in that: The filter portion (4) further comprises an adjustment assembly (403), the adjustment assembly (403) comprising a bearing (4031), a vertical rod (4032), a connecting rod (4033) and a box body (4034), the bearing (4031) being fixedly mounted on the bottom of the second filter plate (4023), one end of the vertical rod (4032) being movably connected to the second filter plate (4023) via the bearing (4031), and one end of the vertical rod (4032) away from the second filter plate (4023) being movably connected to the bottom of the filter box (401).

6. A phosphogypsum drying system according to claim 5, characterized in that: One end of the connecting rod (4033) is fixedly connected to the side wall of the vertical rod (4032), and one end of the connecting rod (4033) away from the vertical rod (4032) is fixedly connected to the side wall of the box body (4034), and the bottom of the box body (4034) is movably fitted with the bottom of the inner cavity of the filter box (401).

7. The phosphogypsum drying system according to claim 1, characterized in that: An air guide pipe (406) is provided at the bottom of the filter box (401), one end of the air guide pipe (406) is connected to an air guide hole provided at the bottom of the filter box (401), and the box body (4034) is located directly above the air guide hole.

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