阅读说明：本技术 一种餐厨垃圾蚯蚓养殖堆肥装置及方法 (Kitchen waste earthworm breeding composting device and method ) 是由 李萍 蒋滔 郭萧 王冰 李平 韦秀丽 高立洪 刘科 张凯 王玉海 高冬梅 战博 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种餐厨垃圾蚯蚓养殖堆肥装置及方法,包括养殖槽本体,养殖槽本体的底板为网状底板,养殖槽内的底部设置有活动筛架,活动筛架能在养殖槽本体内左右来回筛动,养殖槽本体的底板下方设置有用于接收筛落的蚯蚓粪的蚯蚓粪收集斗,养殖槽本体的上方设置有沿着养殖槽本体的长度方向设置有X轴滑轨和Y轴滑轨,Y轴滑轨上滑动连接有布料斗,布料斗能沿着Y轴滑轨移动,布料斗的下方设置有自动控制放料阀门,养殖槽本体顶部分布有喷水管。可以减少劳动力投入,降低蚯蚓养殖成本,具有广阔的推广前景。餐厨垃圾与秸秆按比例混合预堆肥,再经蚯蚓过腹转化,餐厨垃圾电导率及盐份含量大幅度下降,可实现腐殖酸的积累,提高肥料有机质含量。(The invention discloses a kitchen waste earthworm breeding composting device and method, which comprises a breeding tank body, wherein the bottom plate of the breeding tank body is a net-shaped bottom plate, a movable sieve frame is arranged at the bottom in the breeding tank and can sieve back and forth left and right in the breeding tank body, an earthworm cast collecting hopper for receiving screened earthworm cast is arranged below the bottom plate of the breeding tank body, an X-axis slide rail and a Y-axis slide rail are arranged above the breeding tank body along the length direction of the breeding tank body, a distribution hopper is connected on the Y-axis slide rail in a sliding manner and can move along the Y-axis slide rail, an automatic control emptying valve is arranged below the distribution hopper, and water spray pipes are distributed on the top of the breeding tank body. Can reduce labor input and earthworm breeding cost, and has wide popularization prospect. The kitchen waste and the straws are mixed in proportion for pre-composting, and then are subjected to earthworm abdominal transformation, so that the conductivity and the salt content of the kitchen waste are greatly reduced, the accumulation of humic acid can be realized, and the organic matter content of the fertilizer is improved.)

1. The utility model provides a kitchen garbage earthworm breeds compost device, includes breeds the groove body, its characterized in that: breed the bottom plate of groove body and be netted bottom plate, be provided with movable bank of screens on the bottom plate of breeding the groove, movable bank of screens can be controlled and make a round trip to sift about breeding the groove body, the bottom plate below of breeding the groove body is provided with the earthworm cast collection fill that is used for receiving the earthworm cast that the sieve fell, the top of breeding the groove body is provided with the X axle slide rail that extends along the length direction who breeds the groove body be provided with Y axle slide rail on the X axle slide rail, Y axle slide rail can remove along X axle slide rail, sliding connection has the cloth to fight on the Y axle slide rail, the cloth is fought and can be removed along Y axle slide rail, the below that the cloth was fought is provided with automatic control blowing valve, it has the spray pipe to breed the groove body branch of top.

2. The kitchen waste earthworm cultivation composting device of claim 1, which is characterized in that: the movable sieve frame is controlled by a motor, a speed reducer and a rocker mechanism to sieve left and right in the culture tank body.

3. The kitchen waste earthworm cultivation composting device of claim 1, which is characterized in that: the movable sieve frame is controlled by an oil cylinder or an air cylinder to sieve left and right in the culture tank body.

4. The kitchen waste earthworm cultivation composting device according to any one of claims 1-3, characterized in that: breed the groove body and support through the support post that is located its bottom, the earthworm cast is collected and is fought to be located between the support post.

5. The kitchen waste earthworm cultivating and composting device of claim 4, wherein: the movable sieve frame is formed by laying and connecting a plurality of longitudinal ribs distributed along the width direction of the culture tank body and transverse ribs distributed along the length direction of the culture tank body and is matched with the bottom plate in size.

6. The kitchen waste earthworm cultivating and composting device of claim 5, wherein: and a material conveyor is arranged above the initial position of the distributing hopper.

7. The earthworm composting method for kitchen waste is characterized by comprising the following steps of:

1) screening the kitchen waste to select large inorganic substances such as stones, metals and the like, then carrying out solid-liquid separation, and crushing the solid part into paste by a crusher, wherein the solid content is 12-15%;

2) the crop straws are crushed into powder with the particle size less than 5mm by a crusher, and the water content is less than 10 percent.

3) Uniformly mixing straw powder and kitchen waste according to the mass ratio of 1:2-5, adding a biological microbial inoculum for composting, controlling the water content to be 50-60%, and covering a layer of waterproof and breathable film during composting to prevent excessive evaporation of water;

4) the composting time is 12-17 days, turning is carried out during the composting time, and after the composting is finished, the water content of the compost is reduced to about 40%;

5) paving a layer of soil with the height of 9-12cm in a culture tank body of the kitchen waste earthworm culture composting device as claimed in any one of claims 1-6, inoculating Taiping No. two earthworms, and inoculating 1-2kg of the Taiping No. two earthworms per square meter;

6) laying the composted kitchen-straw mixture on the soil, wherein the material height is 10-20cm, and feeding once every half month on average;

7) humidifying the materials in the culture tank through a spray pipe to keep the materials moist;

8) when this internal material of breed groove is piled up soon fully, the back and forth screen of controlling activity bank of screens is controlled and is made a round trip to move, stirs the earthworm cast of breed tank bottom portion, and the earthworm cast falls in earthworm cast collection fill, and about half descends when breeding inslot material height, stops to collect earthworm cast, and the earthworm cast of collection is used for the farmland fertilization.

8. The kitchen waste earthworm composting method of claim 7, which is characterized in that: the biological agent is obtained by mixing a kitchen waste composting agent and a straw biological agent according to the proportion of 1:1, and the adding amount of the biological agent is that 500ml-600ml of mixed agent is added into each ton of kitchen waste.

9. The earthworm composting method for kitchen waste according to claim 8, which is characterized in that: the humidity of the materials in the culture tank is controlled to be 70-90%.

10. The earthworm composting method for kitchen waste according to claim 9, which is characterized in that: the crop straws are corn straws, wheat straws, rice straws and rape straws.

Technical Field

The invention relates to a kitchen waste earthworm breeding composting device and method, and belongs to the field of resource regeneration comprehensive recycling.

Background

The kitchen waste refers to food waste, food residues, food processing waste, inedible animal and vegetable oil and fat and various oil-water mixtures in families, schools, institutions, public dining halls and catering industries, and is part of municipal domestic waste. At present, the main modes of treating the food waste in China are as follows:

1. crushing and direct discharging treatment

The crushing and direct discharging treatment is a main method for treating a small amount of dispersed kitchen waste in European and American countries, and is characterized in that the kitchen waste is directly crushed and crushed at a kitchen waste generating point, then is discharged into an urban municipal sewer network by adopting hydraulic flushing, and is combined with municipal sewage to enter an urban sewage treatment plant for centralized treatment. The crushing method has the advantages of low price, simple and convenient technology and the like for treating a small amount of scattered kitchen waste such as household kitchen waste, can reduce the water content of the municipal waste, reduce the collection amount and is beneficial to improving the heat productivity of the municipal waste.

2. Landfill treatment

Kitchen waste in many areas of China is sent into a landfill site together with common waste for landfill treatment. Landfill is the main treatment mode of harmless treatment of domestic garbage in most countries. The kitchen waste contains a large amount of degradable components, has short stabilization time, is beneficial to the recovery of a landfill site, and is simple and convenient to operate, so that the application is common. With the increasing awareness of the availability of kitchen waste, the landfill rate of kitchen waste is on the trend of decreasing in europe, the united states, japan and china, and even in many countries, the kitchen waste is prohibited from entering a landfill site for treatment.

3. Treatment of fertilizer

The method for treating the kitchen waste into fertilizer mainly comprises aerobic composting and anaerobic digestion. The aerobic composting process is that under aerobic condition, extracellular enzyme secreted by aerobic microbe is used to decompose organic solid into soluble organic matter, which is then permeated into cell to realize the whole composting process via metabolism of microbe. Meanwhile, similar methods are introduced by aerobic composting, for example, earthworm composting is a new technology developed in recent years, earthworms are used for swallowing a large amount of kitchen waste, the kitchen waste is mixed with soil, and organic matters are converted into nutrient substances which can be utilized by self or other organisms through the mechanical grinding effect of a sand bag and the biochemical effect in the intestinal tract. Anaerobic digestion treatment of kitchen waste refers to that under specific anaerobic conditions, microorganisms decompose organic waste, wherein carbon, hydrogen and oxygen are converted into methane and carbon dioxide, and elements such as nitrogen, phosphorus and potassium are remained in residues and are converted into a form which is easily absorbed and utilized by animals and plants.

However, the kitchen waste is rich in a large amount of grease, and if the kitchen waste is directly used for feeding earthworms, the earthworms are usually killed or escaped due to anoxic and acidification of a culture substrate caused by the grease rich in the culture quality.

Disclosure of Invention

Aiming at the technical problems, the first purpose of the invention is to provide a kitchen waste earthworm breeding composting device, and the second purpose of the invention is to provide a kitchen waste earthworm composting method, which effectively utilizes kitchen waste and straws to feed earthworms and converts the earthworms into animal protein, so that the conductivity and the salt content of the kitchen waste are greatly reduced, the kitchen waste earthworm composting method can be directly used for farmland fertilization, and the risk of secondary salinization of soil is reduced.

In order to achieve the first object, the technical scheme of the invention is as follows: the utility model provides a kitchen garbage earthworm breeds compost device, includes breeds the groove body, its characterized in that: breed the bottom plate of groove body and be netted bottom plate, be provided with movable bank of screens on the bottom plate of breeding the groove, movable bank of screens can be controlled and make a round trip to sift about breeding the groove body, the bottom plate below of breeding the groove body is provided with the earthworm cast collection fill that is used for receiving the earthworm cast that the sieve fell, the top of breeding the groove body is provided with the X axle slide rail that extends along the length direction who breeds the groove body be provided with Y axle slide rail on the X axle slide rail, Y axle slide rail can remove along X axle slide rail, sliding connection has the cloth to fight on the Y axle slide rail, the cloth is fought and can be removed along Y axle slide rail, the below that the cloth was fought is provided with automatic control blowing valve, it has the spray pipe to breed the groove body branch of top.

By adopting the scheme, when earthworms are bred, automatic material adding can be realized, and under the attraction of food, the earthworms can gradually move to the material layer and perform abdominal transformation on the kitchen-straw mixture, and earthworm cast is generated. The device is through the earthworm excrement of activity bank of screens automatic collection breed tank bottom, simple structure, and the suitability is strong, can reduce the labour input, reduces earthworm breed cost, has wide popularization prospect.

In the scheme, the method comprises the following steps: the movable sieve frame is controlled by a motor, a speed reducer and a rocker mechanism to sieve left and right in the culture tank body.

In the scheme, the method comprises the following steps: the movable sieve frame is controlled by an oil cylinder or an air cylinder to sieve left and right in the culture tank body.

In the scheme, the method comprises the following steps: breed the groove body and support through the support post that is located its bottom, the earthworm cast is collected and is fought to be located between the support post.

In the scheme, the method comprises the following steps: the movable sieve frame is formed by laying and connecting a plurality of longitudinal ribs distributed along the width direction of the culture tank body and transverse ribs distributed along the length direction of the culture tank body and is matched with the bottom plate in size.

The second object of the present invention is achieved by: the earthworm composting method for kitchen waste is characterized by comprising the following steps of:

1) screening the kitchen waste to select large inorganic substances such as stones, metals and the like, then carrying out solid-liquid separation, and crushing the solid part into paste by a crusher, wherein the solid content is 12-15%.

2) The crop straws are crushed into powder with the particle size less than 5mm by a crusher, and the water content is less than 10 percent.

3) Uniformly mixing straw powder and kitchen waste according to the mass ratio of 1:2-5, adding a biological microbial inoculum for composting, controlling the water content to be 50-60%, and covering a layer of waterproof and breathable film during composting to prevent excessive evaporation of water;

4) the composting time is 12-17 days, turning is carried out during the composting time, and after the composting is finished, the water content of the compost is reduced to about 40%;

5) paving a layer of soil with the height of 9-12cm in a breeding groove body of the kitchen waste earthworm breeding composting device, inoculating Taiping earthworms II, and inoculating 1-2kg of the Taiping earthworms per square meter;

6) laying the composted kitchen-straw mixture on the soil, wherein the material height is 10-20cm, and feeding once every half month on average;

7) humidifying the materials in the culture tank through a spray pipe to keep the materials moist;

8) when this internal material of breed groove is piled up soon fully, the back and forth screen of controlling activity bank of screens is controlled and is made a round trip to move, stirs the earthworm cast of breed tank bottom portion, and the earthworm cast falls in earthworm cast collection fill, and about half descends when breeding inslot material height, stops to collect earthworm cast, and the earthworm cast of collection is used for the farmland fertilization.

The kitchen waste and the straws are mixed in proportion and pre-composted under the action of the biological agent, and then are subjected to earthworm abdominal transformation, so that the accumulation of humic acid can be realized, and the organic matter content of the fertilizer is improved. And through detection, the conductivity of the kitchen waste is reduced by about 60 percent, and Na is added⁺The concentration is reduced by about 35 percent, the content of humic acid is more than 25 percent, and the fertilizer can be directly used for farmland fertilization, thereby reducing the risk of secondary salinization of soil.

In the scheme, the method comprises the following steps: the biological agent is obtained by mixing a kitchen waste composting agent and a straw biological agent according to the proportion of 1:1, and the adding amount of the biological agent is that 500ml-600ml of mixed agent is added into each ton of kitchen waste.

In the scheme, the method comprises the following steps: the humidity of the materials in the culture tank is controlled to be 70-90%.

In the scheme, the method comprises the following steps: the crop straws are corn straws, wheat straws, rice straws, rape straws and the like.

Has the advantages that: the earthworm composting device for kitchen waste can automatically control feeding and clearance of earthworm cast. The equipment is simple in structure and strong in applicability, can reduce labor input, reduces earthworm breeding cost, and has wide popularization prospect. The kitchen waste and the straws are mixed in proportion for pre-composting, and then are subjected to earthworm abdominal transformation, so that the conductivity and the salt content of the kitchen waste are greatly reduced, the accumulation of humic acid can be realized, and the organic matter content of the fertilizer is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a mounting plan view of the movable sieve frame in the culture tank.

Fig. 3 is a side view of fig. 1.

Detailed Description

The invention will be further illustrated by the following examples in conjunction with the accompanying drawings: