Waste heat recycling and drying machine
By installing an exhaust pipe and a filter box at the outlet of the desiccant dryer, combined with a limiting structure, the problems of unutilized waste gas heat and inconvenient filter replacement are solved, realizing the reuse of waste gas heat and convenient filter replacement, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANYUE PURIFICATION EQUIP (ZHEJIANG) CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-17
AI Technical Summary
Excess heat in the exhaust gas of existing desiccant dryers is not effectively utilized, and filter replacement is inconvenient, affecting production efficiency.
Design a waste heat recovery desiccant dryer. By setting an exhaust pipe at the outlet end of the desiccant dryer to connect to a filter box, and setting a limiting structure inside the filter box, the filter element can be easily disassembled and installed, thus realizing the recycling of waste gas.
It enables the reuse of waste gas heat, simplifies the filter replacement process, and improves production efficiency.
Smart Images

Figure CN224126939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, specifically to a waste heat recovery desiccant dryer. Background Technology
[0002] A dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry objects by heating the material to vaporize and escape the moisture (generally water or other volatile liquid components) to obtain solid materials with a specified moisture content.
[0003] The exhaust gas generated by the desiccant during use is directly discharged to the outside, and the excess heat is not effectively utilized. Some existing desiccant dryers can treat the exhaust gas, collect the excess heat and reuse it. However, when treating the exhaust gas, it is inconvenient to replace the filter element on the pipeline, which increases maintenance time and reduces production efficiency. Utility Model Content
[0004] The main objective of this invention is to provide a waste heat recovery desiccant dryer to solve the aforementioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery desiccant, comprising a desiccant, an exhaust pipe at the outlet end of the desiccant, a filter box at one end of the exhaust pipe, a filter element detachably installed inside the filter box, and a limiting structure on the outside of the filter box; an air inlet pipe at the outlet end of the filter box, the air inlet pipe being connected to the desiccant.
[0006] Based on the above scheme and as a preferred embodiment: the limiting structure includes a partition disposed inside the filter box, a support frame disposed on one side of the partition, a limiting plate slidably connected inside the support frame, a return spring disposed on the limiting plate, one end of the return spring being fixedly connected to the inner top wall of the support frame; the limiting plate also includes a T-shaped block, a connecting plate disposed on the top of the T-shaped block; a first handle disposed on the connecting plate; and a limiting post disposed on the bottom of the T-shaped block.
[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the bottom of the filter element is provided with a limiting cylinder, the limiting cylinder and the limiting post are inserted into each other, and one end of the limiting cylinder is slidably connected to the inner wall of the filter box.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a second handle is provided on one side of the filter element.
[0009] Based on the above scheme and as a preferred embodiment of the above scheme: both the exhaust pipe and the intake pipe are equipped with valves.
[0010] The beneficial effects of this utility model are as follows: This utility model realizes the recycling of exhaust gas by setting an exhaust pipe at the outlet end of the desiccant, connecting the exhaust pipe to the filter box, and then connecting the outlet end of the filter box to the air inlet pipe; the setting of the limiting structure makes the filter element easier to disassemble and assemble. Attached Figure Description
[0011] Figure 1 This is a front view of the present invention;
[0012] Figure 2 This is a top view of the limiting structure and filter element installation in the filter box of this utility model;
[0013] Figure 3 This is a side view of the filter element in this utility model. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.
[0015] See attached diagram. Figures 1 to 3 The waste heat recovery desiccant in this embodiment includes a desiccant 1, an exhaust pipe 2 at the outlet end of the desiccant 1, a filter box 3 at one end of the exhaust pipe 2, a filter element 6 detachably installed inside the filter box 3, and a limiting structure on the outside of the filter box 3; an air inlet pipe 4 at the outlet end of the filter box 3, which is connected to the desiccant 1.
[0016] Furthermore, the limiting structure includes a partition 32 disposed inside the filter box 3, a support frame 7 disposed on one side of the partition 32, a limiting plate 70 slidably connected inside the support frame 7, a return spring 71 disposed on the limiting plate 70, one end of the return spring 71 being fixedly connected to the inner top wall of the support frame 7; a T-shaped block 72 disposed on the limiting plate 70, a connecting plate 73 disposed on the top of the T-shaped block 72; a first handle 30 disposed on the connecting plate 73; and a limiting post 74 disposed on the bottom of the T-shaped block 30.
[0017] Furthermore, the bottom of the filter element 6 is provided with a limiting cylinder 60, which is inserted into the limiting post 74, and one end of the limiting cylinder 60 is slidably connected to the inner wall of the filter box 3.
[0018] Furthermore, a second handle is provided on one side of the filter element.
[0019] Furthermore, valves 5 are installed on both the exhaust pipe 2 and the intake pipe 3.
[0020] The working principle of the limiting structure in this utility model is as follows: When the filter element 6 needs to be replaced, the first handle 30 is manually pulled out, so that the limiting post 74 is separated from the limiting cylinder 60 on the filter element 6. At this time, the limiting plate 70 slides on the inner wall of the support frame 7 towards the first handle 30, and the return spring 71 is compressed. Then, the filter element 6 can be pulled out and replaced by the second handle 31. After the replacement is completed, the filter element 6 is reinstalled, the first handle 30 is released, the compressed return spring 71 is reset, and the T-block 72 drives the limiting post 74 to reconnect with the limiting cylinder 60, and the filter element 6 is fixed.
[0021] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A waste heat recovery sorption dryer characterized by: The device includes a desiccant dryer, wherein the outlet end of the desiccant dryer is provided with an exhaust pipe, one end of the exhaust pipe is provided with a filter box, a filter element is detachably installed inside the filter box, and a limiting structure is provided on the outside of the filter box; the outlet end of the filter box is provided with an air inlet pipe, which is connected to the desiccant dryer.
2. A waste heat recovery sorption pump according to claim 1, wherein: The limiting structure includes a partition disposed inside the filter box, a support frame disposed on one side of the partition, a limiting plate slidably connected inside the support frame, a return spring disposed on the limiting plate, one end of the return spring being fixedly connected to the inner top wall of the support frame; a T-shaped block disposed on the limiting plate, a connecting plate disposed on the top of the T-shaped block; a first handle disposed on the connecting plate; and a limiting post disposed on the bottom of the T-shaped block.
3. A waste heat recovery sorption pump according to claim 2, wherein: The bottom of the filter element is provided with a limiting cylinder, which is inserted into a limiting post, and one end of the limiting cylinder is slidably connected to the inner wall of the filter box.
4. A waste heat recovery desiccant dryer according to claim 3, characterized in that: The filter element has a second handle on one side.
5. A waste heat recovery sorption pump according to claim 4, wherein: Both the exhaust pipe and the intake pipe are equipped with valves.