阅读说明：本技术 一种用餐厨垃圾制备无机农家肥的工艺 (Process for preparing inorganic farmyard manure by using kitchen garbage ) 是由 周云国 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种用餐厨垃圾制备无机农家肥的工艺,包括以下步骤：通过运输车将餐厨垃圾运送到反应池,运输车自带有固液分离装置,在入池之前对餐厨垃圾进行固液分离处理,分离出来的固体餐厨垃圾和液体餐厨垃圾暂贮于运输车中；首先在反应池底部均匀填铺黏土,接着在黏土上均匀填铺生石灰,紧接着将分离出来的固体餐厨垃圾均匀填铺在反应池底部,按照上述顺序,反复填铺多层。本发明,利用了置换反应原理,钙离子置换出垃圾中的微量元素,黏土中的各种微量元素与没有腐烂的餐厨垃圾反应生成新的微量元素,最终制备出无机农家肥,实现了厨余垃圾的有效资源化,对于我国餐厨垃圾处理行业而言具有很大的重要意义。(The invention discloses a process for preparing inorganic farmyard manure by using kitchen garbage, which comprises the following steps: conveying the kitchen waste to a reaction tank through a transport vehicle, wherein the transport vehicle is provided with a solid-liquid separation device, carrying out solid-liquid separation treatment on the kitchen waste before entering the tank, and temporarily storing the separated solid kitchen waste and liquid kitchen waste in the transport vehicle; firstly, clay is uniformly filled and paved at the bottom of the reaction tank, then quicklime is uniformly filled and paved on the clay, and then the separated solid kitchen waste is uniformly filled and paved at the bottom of the reaction tank, and multiple layers are repeatedly filled and paved according to the sequence. According to the invention, by utilizing the principle of displacement reaction, calcium ions displace trace elements in the garbage, various trace elements in the clay react with the kitchen garbage without rotting to generate new trace elements, and finally the inorganic farmyard manure is prepared, so that effective recycling of kitchen garbage is realized, and the method has great significance for the kitchen garbage treatment industry in China.)

1. A process for preparing inorganic farmyard manure by using kitchen garbage is characterized by comprising the following steps: the method comprises the following steps:

s1: conveying the kitchen waste to a reaction tank through a transport vehicle, wherein the transport vehicle is provided with a solid-liquid separation device, carrying out solid-liquid separation treatment on the kitchen waste before entering the tank, and temporarily storing the separated solid kitchen waste and liquid kitchen waste in the transport vehicle;

s2: firstly, uniformly filling clay at the bottom of a reaction tank, then uniformly filling quicklime on the clay, then uniformly filling the separated solid kitchen waste at the bottom of the reaction tank, repeatedly filling and laying multiple layers according to the sequence, and finally covering a plastic film on the reaction tank for heat preservation to wait for fermentation;

s3: and fishing out the reactant in the reaction tank after fermentation is finished, screening out large garbage through a screening machine, leaving small garbage, crushing the large garbage through a mincing machine, screening through the screening machine after crushing until the screening standard is reached, finally bagging the screened reactant, and finishing the preparation of the inorganic farmyard manure.

2. The process for preparing the inorganic farmyard manure from the kitchen waste as claimed in claim 1, wherein the process comprises the following steps: and repeatedly paving 7-9 layers in the step S2.

3. The process for preparing the inorganic farmyard manure from the kitchen waste as claimed in claim 1, wherein the process comprises the following steps: the time for waiting for fermentation in step S2 is at least 7 days.

4. The process for preparing the inorganic farmyard manure from the kitchen waste as claimed in claim 1, wherein the process comprises the following steps: the standard for sieving in step S3 is at least 5mm diameter.

Technical Field

The invention relates to the technical field of inorganic farmyard manure, in particular to a process for preparing inorganic farmyard manure by kitchen garbage.

Background

The inorganic fertilizer is mineral fertilizer, also called chemical fertilizer, and is called chemical fertilizer for short. It is characterized by simple components, high effective components, easy water dissolution, fast decomposition, easy absorption by root system, etc., so it is called "quick-acting fertilizer". The common fertilizer is an inorganic fertilizer. In the prior art, inorganic fertilizers refer to fertilizers produced by a chemical synthesis method, including nitrogen, phosphorus, potassium and compound fertilizer organic fertilizers, and are fertilizers made of organic matters.

Kitchen waste, commonly known as swill, also known as swill and hogwash, refers to food waste, food residues, food processing waste, non-edible animal and vegetable oil and various oil-water mixtures in families, schools, institutions, public dining halls and catering industries, and is part of municipal domestic waste.

At present, domestic kitchen waste treatment modes mainly take landfill and incineration treatment together with household garbage, the landfill treatment modes can reduce the service life of a landfill site, and for the incineration treatment modes, only a few developed cities such as Shenzhen and the like in China adopt a waste incineration technology, and harmful gases such as dioxin, nitrogen oxides, sulfur dioxide and the like, dust, waste water and the like generated by incineration cannot be effectively controlled. In order to realize sustainable development of resources, a more effective treatment mode must be found, effective recycling of the kitchen garbage is realized, and great significance is brought to the economic and environmental development of China.

Disclosure of Invention

The invention aims to provide a process for preparing inorganic farmyard manure by using kitchen waste, which can prepare the inorganic farmyard manure by using the kitchen waste, realizes effective recycling of the kitchen waste and solves the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a process for preparing inorganic farmyard manure by using kitchen garbage comprises the following steps:

s1: conveying the kitchen waste to a reaction tank through a transport vehicle, wherein the transport vehicle is provided with a solid-liquid separation device, carrying out solid-liquid separation treatment on the kitchen waste before entering the tank, and temporarily storing the separated solid kitchen waste and liquid kitchen waste in the transport vehicle;

s2: firstly, uniformly filling clay at the bottom of a reaction tank, then uniformly filling quicklime on the clay, then uniformly filling the separated solid kitchen waste at the bottom of the reaction tank, repeatedly filling and laying multiple layers according to the sequence, and finally covering a plastic film on the reaction tank for heat preservation to wait for fermentation;

s3: and fishing out the reactant in the reaction tank after fermentation is finished, screening out large garbage through a screening machine, leaving small garbage, crushing the large garbage through a mincing machine, screening through the screening machine after crushing until the screening standard is reached, finally bagging the screened reactant, and finishing the preparation of the inorganic farmyard manure.

Preferably, in the step S2, 7 to 9 layers are repeatedly paved.

Preferably, the fermentation time in step S2 is at least 7 days.

Preferably, the standard for sieving in step S3 is at least 5mm diameter.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, by utilizing a replacement reaction principle, calcium ions replace trace elements in the garbage, and various trace elements in clay react with kitchen garbage which is not rotten to generate new trace elements (under the action of heat release of quicklime), so that the kitchen garbage does not have odor before the kitchen garbage is rotten and reacts with the quicklime, and the kitchen garbage is similar to a fertilizer retting method commonly used in rural areas, and finally the inorganic farmyard manure is prepared, so that the effective recycling of kitchen garbage is realized, and the method has great significance for the kitchen garbage treatment industry in China.

Drawings

FIG. 1 is a schematic flow chart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a process for preparing inorganic farmyard manure by using kitchen garbage comprises the following steps:

s1: conveying the kitchen waste to a reaction tank through a transport vehicle, wherein the transport vehicle is provided with a solid-liquid separation device, carrying out solid-liquid separation treatment on the kitchen waste before entering the tank, and temporarily storing the separated solid kitchen waste and liquid kitchen waste in the transport vehicle;

s2: firstly, uniformly filling clay at the bottom of a reaction tank, then uniformly filling quicklime on the clay, then uniformly filling the separated solid kitchen waste at the bottom of the reaction tank, repeatedly filling 7-9 layers according to the sequence, finally covering a plastic film on the reaction tank for heat preservation, waiting for fermentation for at least 7 days;

s3: fishing out the reactants in the reaction tank after fermentation is finished, screening out large garbage through a screening machine, wherein the standard of the screening machine is at least 5mm in diameter, leaving the small garbage after passing through the screening machine, crushing the large garbage such as animal bones, fruit stones and the like through a crusher, screening through a screening machine after crushing until the screening standard is reached, finally bagging the screened reactants, and finishing the preparation of the inorganic farmyard manure.

Besides, the invention provides the optimal reactant proportion:

1. firstly, weighing raw materials: 2 kg of solid kitchen waste, 5 kg of clay used as a filling bottom and 3 kg of quicklime;

2. filling 1 kg of clay, and paving 1 kg of quicklime, wherein 1 kg of quicklime with the particle diameter of 12mm accounts for at least 55%;

3. spreading 2 kilograms of solid kitchen waste;

4. paving 2 kilograms of quicklime;

5. fully covering with the residual clay;

6. covering with a plastic film;

observation phenomena are as follows: for example, garbage covering is finished at 8 o' clock, after 8 hours, the temperature exceeds 100 ℃, dense water drops appear on the film, the water drops gradually decrease from the next day, the temperature is kept at about 55 ℃, the temperature is kept at about 37 ℃ on the fourth day, then the temperature is kept at 35 ℃ all the time, and the film is dug out on the seventh day without odor.

The working principle is as follows: the process for preparing the inorganic farmyard manure from the kitchen waste utilizes a displacement reaction principle, calcium ions displace trace elements in the waste, and various trace elements in clay react with the kitchen waste which is not rotten to generate new trace elements (under the action of heat release of quicklime), so that the kitchen waste reacts with the quicklime before the kitchen waste is not rotten, the kitchen waste is odorless and is similar to a common composting method in rural areas, and the inorganic farmyard manure is finally prepared, so that the effective recycling of the kitchen waste is realized, and the process has great significance for the kitchen waste treatment industry in China.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.