Organic garbage pulping and sorting system

Abstract

The utility model belongs to the technical field of garbage treatment, and particularly relates to an organic garbage pulping and sorting system. The organic garbage pulping and sorting system comprises a crushing and screening machine, a sand setting and impurity removing unit, a heating unit and a three-phase centrifugal machine which are connected in sequence, wherein the crushing and screening machine is used for crushing and screening garbage, separated impurities are conveyed to the presser, and slurry is conveyed to the sand setting and impurity removing unit; the sand setting and impurity removing unit is used for removing sand and impurities from the slurry and then conveying the slurry to the heating unit for heating; and the three-phase centrifugal machine is used for carrying out three-phase separation on the heated slurry. According to the organic garbage pulping and sorting system, preliminary large substance sorting does not need to be conducted on garbage, sorting and pulping are completed through the crushing and screening machine, the technological process is shortened, the occupied area can be saved, and the investment cost and the operation cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage treatment, and in particular relates to an organic garbage pulping and sorting system. Background Art

[0002] At present, in the field of restaurant kitchen waste and kitchen waste treatment, pulping systems mostly use mechanical pulping. Mechanical pulping machines need to be used in conjunction with large material sorting machines. Large material sorting machines sort out large materials larger than 60 mm, and small materials smaller than 60 mm enter the mechanical pulping machine for crushing and pulping. The process is relatively long, and the debris sorted out by the large material sorting machine has a high organic matter loss rate and a high moisture content, which affects the subsequent waste-to-energy efficiency. Utility Model Content

[0003] The utility model aims to provide an organic garbage pulping and sorting system to solve the technical problem that the existing pulping system needs to sort large materials, resulting in an overly long process flow.

[0004] The present application provides an organic waste pulping and sorting system. The organic waste pulping and sorting system comprises: a crushing and screening machine, a sand settling and impurity removal unit, a heating unit, and a three-phase centrifuge connected in sequence;

[0005] The crushing and screening machine is used to crush and screen the garbage, the separated debris is transported to the press, and the slurry is transported to the sand settling and impurity removal unit;

[0006] The sand settling and impurity removal unit removes sand and impurities from the slurry and then transports it to the heating unit for heating;

[0007] The three-phase centrifuge is used to perform three-phase separation on the heated slurry.

[0008] In one embodiment of the present application, the crushing and screening machine comprises:

[0009] The shell body has a debris discharge pipe and a slurry discharge pipe at the bottom thereof;

[0010] An impeller is disposed in the housing and includes a plurality of shear blades;

[0011] A screen is arranged at the inlet of the slurry discharge pipe at the bottom of the shell.

[0012] In one embodiment of the present application, the crushing end of the shear blade is inlaid with a wear-resistant block.

[0013] In one embodiment of the present application, the organic waste pulping and sorting system further comprises a wastewater collection device connected to the three-phase centrifuge;

[0014] The wastewater collecting device is connected to the crushing and screening machine through a high-temperature wastewater return pipe, and is used to transport the wastewater separated by the three-phase centrifuge to the crushing and screening machine.

[0015] In one embodiment of the present application, the organic waste pulping and sorting system also includes an anaerobic system connected to the three-phase centrifuge and the wastewater collection device, and is used to receive the organic solid residue separated by the three-phase centrifuge and the wastewater discharged by the wastewater collection device.

[0016] In one embodiment of the present application, the organic waste pulping and sorting system further includes a grease storage tank for collecting the grease separated by the three-phase centrifuge.

[0017] The beneficial effects of the utility model are:

[0018] 1. The organic waste pulping and sorting system of the utility model does not need to carry out preliminary large-scale material sorting of the waste. The crushing and screening machine completes the sorting and pulping, which shortens the process flow, saves floor space, and reduces investment and operating costs;

[0019] 2. The organic waste pulping and sorting system of the utility model uses high-temperature wastewater separated by a three-phase centrifuge to flow back to the crushing and screening machine for slag washing, which can recover energy and reduce subsequent heating energy consumption, while achieving the purpose of slag washing and improving the recovery rate of organic matter.

[0020] 3. The blades of the crushing and screening machine are treated with detachable and inlaid wear-resistant blocks, which can increase the service life of the equipment and reduce operating costs.

[0021] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of an organic waste pulping and sorting system according to a preferred embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of a crushing and screening machine of a preferred embodiment of the utility model;

[0026] Figure 3 It is a bottom plan view of a crushing and screening machine of a preferred embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of blades of a crushing and screening machine according to a preferred embodiment of the utility model.

[0028] In the figure:

[0029] Shell 1, debris discharge pipe 11, slurry discharge pipe 12, impeller 2, shear blades 21, wear-resistant blocks 211, screen 3. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Professional terms and explanations:

[0032] Kitchen waste: food waste from restaurants, hotels, company canteens, etc., as well as fruits and vegetables from the kitchen. Waste from the processing of meat, oil, pastries, etc.

[0033] Kitchen waste: Kitchen waste refers to the waste generated in residents' daily lives and food processing, catering services, unit catering and other activities, including discarded vegetable leaves, leftovers, leftover rice, fruit peels, egg shells, tea dregs, bones, etc. Its main sources are home kitchens, restaurants, hotels, canteens, markets and other industries related to food processing.

[0034] The difference between the two: Food waste is generated from leftovers from restaurants, canteens and other catering industries, and is characterized by large volume, multiple sources and wide distribution; kitchen waste mainly refers to fruits and vegetables, food scraps, leftovers, melon and fruit peels and other perishable organic waste discarded by residents in their daily lives.

[0035] The present application provides an organic waste pulping and sorting system, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0036] See also Figure 1In one embodiment of the present application, an organic waste pulping and sorting system includes a crushing and screening machine, a grit and impurity removal unit, a heating unit, and a three-phase centrifuge connected in sequence; wherein the crushing and screening machine is used to crush and screen the waste, the separated impurities are transported to a press, and the pulp is transported to the grit and impurity removal unit; the grit and impurity removal unit removes sand and impurities from the pulp and then transports it to the heating unit for heating; the three-phase centrifuge is used to perform three-phase separation on the heated pulp.

[0037] See also Figure 2 and Figure 3 In this embodiment, specifically, the crushing and screening machine includes: a shell 1, a debris discharge pipe 11 and a slurry discharge pipe 12 are arranged at the bottom of the shell; an impeller 2, which is arranged in the shell 1 and includes a plurality of shear blades 21; a screen 3, which is arranged at the inlet of the slurry discharge pipe 12 at the bottom of the shell 1.

[0038] See also Figure 4 Preferably, the crushing end of the shear blade 21 is inlaid with a wear-resistant block 211.

[0039] In this embodiment, the crushing and screening machine of the organic waste pulping and sorting system adopts mechanical and hydraulic effects to perform pulping and sorting, and utilizes the mechanical force of the impeller rotation and the water in the garbage as the working medium. The impeller rotation drives the water to form a circulating vortex, and under the action of the hydraulic flow field, the garbage is rubbed, sheared, and torn to achieve the purpose of pulping and screening; the mesh diameter of the screen 3 can be 6 to 20 mm, and the size is adjustable. After pulping, the screened material enters the sand settling and impurity removal unit for further impurity removal, and the screened material enters the press for dehydration; the shearing blade 21 adopts the design of inlaid wear-resistant block 211, and the wear-resistant block 211 can be a wear-resistant alloy block, which is detachable. When the wear-resistant block 211 is worn, it can be removed and replaced, thereby increasing the service life of the impeller, thereby extending the service life of the crushing and screening machine and reducing the equipment use cost.

[0040] In this embodiment, the slurry enters the sand settling and impurity removal unit, which further removes sand and impurities from the material. The sand settling and impurity removal unit can be an existing desander and impurity remover. The desander is based on the principle of a hydrocyclone and combines gravity sand settling, using high-speed cyclone centrifugal force to separate and settle the sand and gravel materials in the slurry; the impurity remover can be equipped with a mesh cylinder with a gap of about 1mm, and the fine fiber impurities larger than 1mm in the slurry are filtered out by the high-speed rotation of the internal blades. The size of the impurities removed can be adjusted by changing the mesh cylinder gap.

[0041] In this embodiment, the heating unit may be an existing heater, and after the slurry passes through the sand settling and impurity removal unit, it is heated to 75-80° C. by the heater and then enters the three-phase centrifuge.

[0042] In this embodiment, further, the organic waste pulping and sorting system also includes a wastewater collecting device connected to the three-phase centrifuge; the wastewater collecting device is connected to the crushing and screening machine through a high-temperature wastewater return pipe, and is used to transport the wastewater separated by the three-phase centrifuge to the crushing and screening machine.

[0043] Furthermore, the organic waste pulping and sorting system also includes an anaerobic system connected to the three-phase centrifuge and the wastewater collection device, and used to receive the organic solid residue separated by the three-phase centrifuge and the wastewater discharged by the wastewater collection device.

[0044] Furthermore, the organic waste pulping and sorting system also includes a grease storage tank for collecting the grease separated by the three-phase centrifuge.

[0045] In this embodiment, the organic solid residue and part of the high-temperature wastewater separated by the three-phase centrifuge enter the anaerobic system, and the oil can enter the oil storage tank for temporary storage and then be sold for treatment; some of the high-temperature wastewater flows back to the high-concentration pulping screening machine as pulping water, and the high-temperature wastewater is used to heat the material, avoiding the heating of external water, and can also recover energy, reducing the energy demand for subsequent heating; at the same time, the purpose of high-temperature slag washing is achieved, and the recovery rate of organic matter is improved.

[0046] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0047] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0049] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An organic waste pulping and sorting system, characterized in that: It includes a crushing and screening machine, a sand settling and impurity removal unit, a heating unit, and a three-phase centrifuge connected in sequence; The crushing and screening machine is used to crush and screen the garbage, the separated debris is transported to the press, and the slurry is transported to the sand settling and impurity removal unit; The sand settling and impurity removal unit removes sand and impurities from the slurry and then transports it to the heating unit for heating; The three-phase centrifuge is used to perform three-phase separation on the heated slurry.

2. The organic waste pulping and sorting system according to claim 1, characterized in that: The crushing and screening machine comprises: A shell (1) having a debris discharge pipe (11) and a slurry discharge pipe (12) disposed at the bottom thereof; An impeller (2) is arranged in the housing (1) and comprises a plurality of shear blades (21); The screen (3) is arranged at the inlet of the slurry discharge pipe (12) at the bottom of the shell (1).

3. The organic waste pulping and sorting system according to claim 2, characterized in that: The crushing end of the shear blade (21) is inlaid with a wear-resistant block (211).

4. The organic waste pulping and sorting system according to claim 1, characterized in that: The organic waste pulping and sorting system also includes a wastewater collection device connected to the three-phase centrifuge; The wastewater collecting device is connected to the crushing and screening machine through a high-temperature wastewater return pipe, and is used to transport the wastewater separated by the three-phase centrifuge to the crushing and screening machine.

5. The organic waste pulping and sorting system according to claim 4, characterized in that: The organic waste pulping and sorting system also includes an anaerobic system connected to the three-phase centrifuge and the wastewater collecting device, and used to receive the organic solid residue separated by the three-phase centrifuge and the wastewater discharged by the wastewater collecting device.

6. The organic waste pulping and sorting system according to claim 4, characterized in that: The organic waste pulping and sorting system also includes a grease storage tank for collecting the grease separated by the three-phase centrifuge.

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