Dry cleaning machine with composite filtering and sludge cleaning functions

Abstract

The utility model discloses a dry cleaning machine with composite filtering and sludge cleaning functions, and relates to the field of dry cleaning machines. Comprising a washing and drying module, a composite filtering module and a sludge cleaning module, the washing and drying module is communicated with the composite filtering module through a pipeline, and the composite filtering module is communicated with the sludge cleaning module through a pipeline; the composite filtering module is composed of a first filter and a second filter which are connected in series, and the first filter is a multi-disc centrifugal filter. According to the composite filtering module of the dry cleaning machine, two filters of different types are adopted for filtering, the multi-disc centrifugal filters are arranged to filter most solid particles, and the multi-disc centrifugal filters with different filtering precisions and filtering areas can be selected according to different specifications of the dry cleaning machine; the activated carbon filter is arranged to filter color molecules and peculiar smell in the solvent.

Description

Technical Field

[0001] The utility model relates to the field of dry cleaning machines, in particular to a dry cleaning machine with composite filtering and sludge cleaning functions. Background Art

[0002] A dry cleaning machine is a machine that uses dry cleaning solvents to wash clothes. Existing dry cleaning machines, regardless of the type of solvent used, such as tetrachloroethylene, hydrocarbon solvents, silicon-based solvents or other solvents, all require the solvents containing impurities after washing clothes to be regenerated and purified, and then recycled for reuse due to high prices and environmental concerns.

[0003] There are generally two methods for solvent recovery: one is mechanical filtration, which uses a filter to filter out solvents containing impurities. This method is simple and practical, consumes less energy, and has better results. However, since it can only filter solid particles in the solvent and is limited by the filtration accuracy of the filter, it can only meet some requirements.

[0004] The second method is distillation, which separates the components in a liquid-solid system by exploiting their different boiling points. This method is the most effective for solvent purification. However, distillation systems are complex, requiring a distillation tank, a distillation condenser, and a separator. For high-boiling-point solvents such as hydrocarbons, reduced-pressure distillation must be employed, requiring a vacuum system. Distillation systems consume significant energy, typically accounting for 60-70% of a dry cleaning machine's total energy consumption.

[0005] Moreover, the filters used in most dry cleaning machines are filter paper or pleated paper filter elements, with granular activated carbon particles filled between the filter papers. The filtering effect is poor and the sludge generated is difficult to collect and clean. Utility Model Content

[0006] In order to solve the above-mentioned problems of the prior art, the utility model provides a dry cleaning machine with composite filtering and sludge cleaning functions. A composite filter is provided to improve the filtering effect, and a recycler is provided to clean and recycle the sludge filtered by the filter to avoid sludge containing washing solvents from polluting the environment.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a dry cleaning machine with composite filtering and sludge cleaning functions, comprising a washing and drying module, a composite filtering module and a sludge cleaning module; the washing and drying module is connected to the composite filtering module through a pipeline, and the composite filtering module is connected to the sludge cleaning module through a pipeline; the composite filtering module is composed of a first filter and a second filter connected in series, and the first filter is a multi-disc centrifugal filter.

[0008] The second filter is an activated carbon filter, which is used to filter color molecules and odors in the solvent.

[0009] The sludge cleaning module includes a sewage bucket, a sewage bucket cover, a filter bag, a recovery device shell, a condenser, a solvent recovery port, a heater, a fan, an air inlet pipe and an air outlet pipe; the sewage bucket cover is installed on the top of the sewage bucket, the top of the side wall of the sewage bucket is connected to the first filter through a pipe, and a filter bag with an opening facing upward is provided in the sewage bucket; the interior of the recovery device shell is composed of a connected lower condensation area and an upper heating area, a condenser is provided in the condensation area, and a solvent recovery port is provided at the bottom of the condensation area; a heater and a fan are provided in the heating area; the bottom of the side wall of the sewage bucket is connected to the condensation area of ​​the recovery device shell through an air inlet pipe; the heating area of ​​the recovery device shell is connected to the top of the side wall of the sewage bucket through the air outlet pipe.

[0010] The air inlet pipe and the air outlet pipe are both provided with pipeline valves.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The composite filtration module of this dry cleaning machine uses two filters of different models for filtration. The multi-disc centrifugal filter can filter out most solid particles. Depending on the specifications of the dry cleaning machine, multi-disc centrifugal filters with different filtration accuracy and filtration area can be selected; the activated carbon filter can filter out color molecules and odors in the solvent.

[0013] The sludge cleaning module replaces the traditional distillation method, which can significantly reduce energy and cooling water consumption and lower equipment procurement costs. It also separates the sludge removed during multi-disc centrifugal filter maintenance and recovers the sludge and washing solvent separately. The resulting sludge will reduce environmental pollution during subsequent treatment, and the resulting washing solvent can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural principle diagram of the utility model;

[0016] Figure 2 It is the structural principle diagram of the sludge cleaning module.

[0017] Markings in the figure include: 1. Washing and drying module, 2. Composite filtration module, 3. Sludge cleaning module, 4. Pipeline, 5. First filter, 6. Second filter, 7. Drain bucket, 8. Drain bucket cover, 9. Filter bag, 10. Recycler shell, 11. Condenser, 12. Solvent recovery port, 13. Heater, 14. Fan, 15. Air inlet pipe, 16. Air outlet pipe, and 17. Pipeline valve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Reference Figure 1-2 This embodiment provides a dry cleaning machine with composite filtration and sludge cleaning functions, including a washing and drying module 1, a composite filtration module 2 and a sludge cleaning module 3; the washing and drying module 1 is connected to the composite filtration module 2 through a pipeline 4, and the composite filtration module 2 is connected to the sludge cleaning module 3 through a pipeline 4; the composite filtration module 2 is composed of a first filter 5 and a second filter 6 connected in series, and the first filter 5 is a multi-disc centrifugal filter.

[0020] In this embodiment, the second filter 6 is preferably an activated carbon filter, which is used to filter color molecules and odors in the solvent.

[0021] In this embodiment, the sludge cleaning module 3 includes a sewage bucket 7, a sewage bucket cover 8, a filter bag 9, a recoverer shell 10, a condenser 11, a solvent recovery port 12, a heater 13, a fan 14, an air inlet pipe 15 and an air outlet pipe 16; the sewage bucket cover 8 is installed on the top of the sewage bucket 7, and the top of the side wall of the sewage bucket 7 is connected to the first filter 5 through a pipe 4, and a filter bag 9 with an opening facing upward is provided in the sewage bucket 7; the interior of the recoverer shell 10 is composed of a connected lower condensation area and an upper heating area, a condenser 11 is provided in the condensation area, and a solvent recovery port 12 is provided at the bottom of the condensation area; a heater 13 and a fan 14 are provided in the heating area; the bottom of the side wall of the sewage bucket 7 is connected to the condensation area of ​​the recoverer shell 10 through the air inlet pipe 15; the heating area of ​​the recoverer shell 10 is connected to the top of the side wall of the sewage bucket 7 through the air outlet pipe 16.

[0022] In this embodiment, pipeline valves 17 are provided on both the air inlet pipe 15 and the air outlet pipe 16 .

[0023] The working principle of this dry cleaning machine is as follows: the dry cleaning detergent in the washing and drying module 1 first enters the composite filter module 2, and the multi-disc centrifugal filter 5 in the composite filter module 2 is used to filter solid particles that contaminate the dry cleaning solvent; then the solvent enters the activated carbon filter 6 to filter out color molecules and odors in the solvent.

[0024] After a period of use, the composite filter requires maintenance. The activated carbon in the activated carbon filter 6 needs to be replaced. The multi-disc centrifugal filter 5 is maintained by flushing. The combined effects of filter disc rotation and solvent pressure cause the filtered solid particles to fall off the discs and be discharged as a slurry into the sludge cleaning module 3.

[0025] After the maintenance of the multi-disc centrifugal filter 5 is completed, the muddy dirt discharged from the filter falls into the filter bag 9 in the sludge cleaning module 3 through the pipe 4. After a period of sedimentation, the sludge cleaning module 3 starts to work. First, the fan 14 and the pipe valve 17 are turned on, and the heater 13 and the condenser 11 work at the same time. The hot air heated by the heater 13 is pushed by the fan 14 and blown into the sewage bucket 7 through the outlet pipe 16. After passing through the dirt in the filter bag 9, the residual solvent in the dirt is carried through the filter bag 9 and enters the condensation area of ​​the recovery shell 10 from the air inlet pipe 15. After condensation by the condenser 11, the solvent in the hot air is condensed out and discharged through the solvent recovery port 12 for reuse. The condensed air enters the heating area and is heated by the heater 13. The above cycle is repeated until the dirt in the filter bag 9 is dried and the recovery process is completed.

[0026] Finally, open the sewage bucket cover 8, take out the filter bag 9 containing dry dirt, and replace it with a new filter bag and place it in the sewage bucket 7.

[0027] After being processed by the sludge cleaning module 3, the solvent in the sludge discharged from the filter is completely recovered, and the remaining dry dirt fully meets the environmental emission standards, achieving zero emission and zero pollution.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A dry cleaning machine with composite filtering and sludge cleaning functions, characterized in that: It includes a washing and drying module, a composite filtering module and a sludge cleaning module; the washing and drying module is connected to the composite filtering module through a pipeline, and the composite filtering module is connected to the sludge cleaning module through a pipeline; the composite filtering module consists of a first filter and a second filter connected in series, and the first filter is a multi-disc centrifugal filter.

2. The dry cleaning machine with composite filtering and sludge cleaning functions according to claim 1, characterized in that: The second filter is an activated carbon filter.

3. The dry cleaning machine with composite filtering and sludge cleaning functions according to claim 1, characterized in that: The sludge cleaning module includes a sewage bucket, a sewage bucket cover, a filter bag, a recovery device shell, a condenser, a solvent recovery port, a heater, a fan, an air inlet pipe and an air outlet pipe; the sewage bucket cover is installed on the top of the sewage bucket, the top of the side wall of the sewage bucket is connected to the first filter through a pipe, and a filter bag with an opening facing upward is provided in the sewage bucket; the interior of the recovery device shell is composed of a connected lower condensation area and an upper heating area, a condenser is provided in the condensation area, and a solvent recovery port is provided at the bottom of the condensation area; a heater and a fan are provided in the heating area; the bottom of the side wall of the sewage bucket is connected to the condensation area of ​​the recovery device shell through an air inlet pipe; the heating area of ​​the recovery device shell is connected to the top of the side wall of the sewage bucket through the air outlet pipe.

4. The dry cleaning machine with composite filtering and sludge cleaning functions according to claim 3, characterized in that: The air inlet pipe and the air outlet pipe are both provided with pipeline valves.

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