Aggregate production waste recycling system

Abstract

The utility model relates to the technical field of waste treatment, in particular to an aggregate production waste recycling system. The aggregate production waste recycling system comprises a smoke pipeline, a spraying device, an electrostatic tower, a multi-layer filtering device and a tail gas fan which are sequentially communicated with a waste gas outlet of an aggregate machine, and an oil-water separation device communicated with a water outlet of the spraying device, and wastewater generated by the spraying device enters the oil-water separation device. According to the pellet production waste recycling system, pollution-free treatment and recycling of fiber dust and production water are achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, specifically to a recycling system for waste from pellet production. Background Technology

[0002] A pelletizer is a device that pelletizes waste polyester fabric scraps for use in recycled polyester production. However, pelletizers generate fiber dust and wastewater during the pelletizing process, and direct discharge of these wastes leads to environmental pollution. Current waste treatment equipment for pelletizers is outdated and cannot completely neutralize the waste generated during production. Furthermore, the fiber dust and wastewater in the waste are not recycled, resulting in resource waste. Utility Model Content

[0003] The technical problem to be solved by this utility model is: a recycling system for waste from pellet production.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A waste recycling system for pellet production, wherein the waste is generated by a pelletizer, the pelletizer includes an exhaust gas outlet, and the waste recycling system for pellet production includes a smoke pipe, a spray device, an electrostatic tower, a multi-layer filter device and an exhaust gas fan connected in sequence to the exhaust gas outlet of the pelletizer, and an oil-water separation device connected to the drain outlet of the spray device; the wastewater generated by the spray device enters the oil-water separation device.

[0005] The smoke duct includes a vertical section and a horizontal section that are interconnected. The vertical section is connected to the exhaust outlet of the pellet mill, and the end of the horizontal section away from the vertical section is inclined toward the spraying device.

[0006] The vertical section is equipped with a large particle filter screen.

[0007] The vertical section has a notch, through which the large particle filter screen is inserted.

[0008] The horizontal section is equipped with an annular nozzle.

[0009] The horizontal section is provided with a pipe gate at the end away from the vertical section.

[0010] The spray device includes a first filter screen, a second filter screen, and a third filter screen arranged sequentially along the air intake direction.

[0011] A first spray assembly is provided between the first filter screen and the second filter screen, and a second spray assembly is provided between the second filter screen and the third filter screen.

[0012] The first spray assembly is positioned toward the first filter screen, and the second spray assembly is positioned toward the second filter screen.

[0013] The spraying device also includes a drain outlet, which is connected to an oil-water separator.

[0014] The beneficial effects of this utility model are as follows: The waste recycling system for pellet production of this utility model performs multiple filtration, electrostatic decomposition and oil removal operations on the production waste through a smoke pipe, a spray device, an electrostatic tower, a multi-layer filter device and an oil-water separation device, so as to achieve pollution-free treatment and recycling of fiber dust and production water. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the waste recycling system for pellet production of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the smoke duct and spray device of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pelletizer, smoke pipe and spraying device of this utility model.

[0018] Description of labels:

[0019] 1. Smoke duct; 11. Vertical section; 111. Large particle filter; 12. Horizontal section; 121. Annular nozzle; 122. Pipe gate;

[0020] 2. Spraying device; 21. First filter screen; 22. First spraying assembly; 23. Second filter screen; 24. Second spraying assembly; 25. Third filter screen; 26. Drain outlet;

[0021] 3. Electrostatic tower; 4. Multi-layer filtration device; 5. Exhaust gas fan; 6. Oil-water separator; 7. Pelletizer. Detailed Implementation

[0022] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please refer to Figure 1 A system for recycling waste from pellet production is disclosed. The waste is generated by a pelletizer, which includes an exhaust gas outlet. The system includes a smoke duct, a spray device, an electrostatic tower, a multi-layer filter, and a tail gas fan that are sequentially connected to the exhaust gas outlet of the pelletizer, as well as an oil-water separator connected to the drain outlet of the spray device. Wastewater generated by the spray device enters the oil-water separator.

[0024] As can be seen from the above description, the beneficial effects of this utility model are as follows: under the power of the exhaust fan, the exhaust gas of the pelletizer passes through the smoke pipe and spray device in sequence to intercept most of the solid particles such as fiber dust, and then passes through the electrostatic tower for high-voltage electrostatic decomposition of toxic and harmful gases. Finally, it enters the multi-layer filter device to collect fine fiber dust and grease carried in the exhaust gas, thereby achieving harmless treatment. The fiber dust in the exhaust gas is intercepted by the recycling system and can be reused.

[0025] An oil-water separator is used to treat the wastewater generated by the pellet mill's spraying device. The treated water can then be reused by entering the smoke duct and spraying device.

[0026] Please refer to Figure 2 and 3 Furthermore, the smoke duct includes interconnected vertical and horizontal sections. The vertical section connects to the exhaust outlet of the pellet mill, and the horizontal section is inclined towards the spraying device at the end away from the vertical section.

[0027] As can be seen from the above description, the end of the horizontal section away from the vertical section is inclined towards the spray device, so that the wastewater generated by the smoke pipe can enter the spray device for treatment together.

[0028] Furthermore, large-particle filters are installed in the vertical section.

[0029] As can be seen from the above description, large particle filters are used to intercept large fiber particles generated when clumps of particles are formed.

[0030] Furthermore, the vertical section has notches, through which large particle filter screens are inserted into the vertical section.

[0031] As can be seen from the above description, the large particle filter screen is inserted into the vertical section through the notch, which facilitates cleaning and replacement of the filter screen and collection of large particle fibers.

[0032] Furthermore, an annular nozzle is provided within the horizontal section.

[0033] As can be seen from the above description, the annular nozzle forms a water curtain inside the pipe to capture small particles of fibrous dust.

[0034] Furthermore, a pipe gate is provided at the end of the horizontal section away from the vertical section.

[0035] As can be seen from the above description, the pipe gate can close the smoke pipe for spray tower maintenance.

[0036] Furthermore, the spraying device includes a first filter screen, a second filter screen, and a third filter screen arranged sequentially along the air intake direction.

[0037] As can be seen from the above description, a three-layer filter is used to intercept small particulate fibers in the exhaust gas, and most of the solid particulate matter has been removed from the gas filtered by the third filter.

[0038] Furthermore, a first spray assembly is provided between the first filter screen and the second filter screen, and a second spray assembly is provided between the second filter screen and the third filter screen.

[0039] The first spray assembly and the second spray assembly have the same structure.

[0040] Furthermore, the first spray assembly is positioned toward the first filter screen, and the second spray assembly is positioned toward the second filter screen.

[0041] As can be seen from the above description, the first spray assembly and the second spray assembly are used to clean the fibers adhering to the first filter screen and the second filter screen.

[0042] Furthermore, the spraying device also includes a drain outlet, which is connected to an oil-water separator.

[0043] Preferably, the drain outlet is located at the bottom of the spray device.

[0044] Please refer to Figures 1-3 The first embodiment of this utility model is: a recycling system for waste from pellet production, wherein the waste is generated by a pelletizer 7, and the pelletizer 7 includes a waste gas outlet;

[0045] The waste recycling system for pellet production includes a smoke pipe 1, a spray device 2, an electrostatic tower 3, a multi-layer filter device 4, and an exhaust fan 5, which are connected in sequence to the exhaust outlet of the pellet mill 7, as well as an oil-water separation device 6; the wastewater generated by the smoke pipe 1 and the spray device 2 enters the oil-water separation device 6.

[0046] The smoke duct 1 includes a vertical section 11 and a horizontal section 12 that are interconnected. The vertical section 11 is connected to the exhaust outlet of the pelletizer 7. The end of the horizontal section 12 away from the vertical section 11 is inclined toward the spray device 2. A large particle filter screen 111 is provided in the vertical section 11. A notch is provided on the vertical section 11. The large particle filter screen 111 with a pore size of 20mm is inserted into the vertical section 11 through the notch. An annular nozzle 121 is provided in the horizontal section 12. A pipe gate 122 is provided at the end of the horizontal section 12 away from the vertical section 11.

[0047] The spray device 2 includes a drain outlet 26 and a first filter screen 21, a first spray assembly 22, a second filter screen 23, a second spray assembly 24, and a third filter screen 25 arranged sequentially along the air inlet direction; the drain outlet 26 is connected to the oil-water separator 6, the first spray assembly 22 is positioned facing the first filter screen 21, and the second spray assembly 24 is positioned facing the second filter screen 23; the first spray assembly 22 and the second spray assembly 24 have the same structure; the aperture of the first filter screen 21, the second filter screen 23, and the third filter screen 25 is 2mm.

[0048] The operating principle of this utility model is as follows:

[0049] Powered by the exhaust fan 5, the production exhaust gas from the pelletizer 7 passes through the large particle filter 111 of the smoke duct 1 to remove large fiber particles. Then, under the action of the water curtain formed by the annular nozzle 121, some small fiber dust particles are removed. The exhaust gas treated by the smoke duct 1 enters the spray device 2, where it passes through three layers of filters to trap most of the solid particles such as fiber dust. Then, it passes through the electrostatic tower 3 to decompose toxic and harmful gases under high voltage electrostatic discharge. Finally, it enters the multi-layer filter device 4 to collect fine fiber dust and grease carried in the exhaust gas, achieving harmless treatment. During the exhaust gas treatment process, the first spray assembly 22 and the second spray assembly 24 are used to clean the fiber particles adhering to the first filter 21 and the second filter 23.

[0050] Wastewater generated by the smoke duct 1 and the spray device 2 enters the oil-water separator 6 for treatment, and the treated water can be reused in the smoke duct 1 and the spray device 2.

[0051] In summary, the pellet production waste recycling system provided by this utility model has the following advantages:

[0052] 1. It achieves pollution-free treatment, and the fiber dust in the exhaust gas and the treated wastewater can be recycled and reused.

[0053] 2. The horizontal section of the smoke duct is inclined towards the spray device at the end furthest from the vertical section, so that the wastewater generated by the smoke duct can enter the spray device.

[0054] 3. The large particle filter screen in the smoke duct is inserted into the vertical section through a notch, which facilitates cleaning and replacement of the filter screen and collection of large particle fibers.

[0055] 4. The smoke duct is equipped with a gate valve to regulate the flow of exhaust gas or to shut off the smoke duct for spray tower maintenance.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A system for recycling waste from pellet production, wherein the waste is generated by a pelletizer, the pelletizer including an exhaust gas outlet, characterized in that, The waste recycling system for pellet production includes a smoke pipe, a spray device, an electrostatic tower, a multi-layer filter device, and a tail gas fan that are sequentially connected to the exhaust outlet of the pellet mill, as well as an oil-water separator connected to the drain outlet of the spray device; the wastewater generated by the spray device enters the oil-water separator.

2. The pellet production waste recycling system according to claim 1, characterized in that, The smoke duct includes a vertical section and a horizontal section that are interconnected. The vertical section is connected to the exhaust outlet of the pellet mill, and the end of the horizontal section away from the vertical section is inclined toward the spraying device.

3. The pellet production waste recycling system according to claim 2, characterized in that, The vertical section is equipped with a large particle filter screen.

4. The pellet production waste recycling system according to claim 3, characterized in that, The vertical section has a notch, through which the large particle filter screen is inserted into the vertical section.

5. The pellet production waste recycling system according to claim 2, characterized in that, The horizontal section is equipped with an annular nozzle.

6. The pellet production waste recycling system according to claim 2, characterized in that, A pipe gate is provided at the end of the horizontal section away from the vertical section.

7. The pellet production waste recycling system according to claim 1, characterized in that, The spray device includes a first filter screen, a second filter screen, and a third filter screen arranged sequentially along the air intake direction.

8. The pellet production waste recycling system according to claim 7, characterized in that, A first spray assembly is provided between the first filter screen and the second filter screen, and a second spray assembly is provided between the second filter screen and the third filter screen.

9. The pellet production waste recycling system according to claim 8, characterized in that, The first spray assembly is positioned toward the first filter screen, and the second spray assembly is positioned toward the second filter screen.

10. The pellet production waste recycling system according to claim 1, characterized in that, The spraying device also includes a drain outlet, which is connected to an oil-water separator.

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