CN202744544U - Biogas reactor - Google Patents

Abstract

A biogas reactor, comprising an enamel steel plate shell, the enamel steel plate is coated with an enamel coating with the same thickness of the porcelain layer on the inner and outer sides of the steel plate, and a top vertical stirrer inserted vertically into the reactor is arranged inside the shell , an oblique stirrer inserted obliquely in the reactor and a bottom side stirrer at the bottom of the reactor. The enamel steel plate is coated with enamel coating on the inner and outer sides of the steel plate, and the steel plate is heated and polymerized to form a strong bonding force between the enamel layer and the steel plate. The protective layer formed by the enamel coating can not only prevent the reactor from corroding, but also has the characteristics of resistance to strong acid, strong alkali and high temperature, which is not only beneficial to the reaction, but also greatly improves the service life of the reactor. Moreover, the three different agitators in the reactor can basically stir all the biogas raw materials in the reactor, so that the biogas raw materials can be more fully mixed and reacted.

Description

biogas reactor

technical field

The utility model relates to a biogas reactor.

Background technique

The shell materials used in some current reactors have poor corrosion resistance, lack of reliable safety protection equipment and necessary equipment for convenient operation and management, which will not only affect the normal biochemical reactions, but also corrode the shell and reduce the service life of the reactor. Equipment The ability to resist accidents is poor, and the operation and management efficiency is low and inconvenient. In addition, in order to facilitate the reaction, stirring should be installed in the biogas reactor to help the biogas slurry and biogas residue to mix evenly. It is necessary to install a stirrer, but for large biogas reactors, usually only installing a stirrer in the central axis of the reactor cannot Make the biogas slurry and biogas residue in the reactor flow completely, and there are dead angles at the bottom and near the tank wall, which will affect the effective and uniform biogas reaction.

In view of this, the utility model is proposed.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a biogas reactor with good corrosion resistance.

In order to solve the problems of the technologies described above, the basic idea of the technical solution adopted by the utility model is:

A biogas reaction tank, comprising an enamel steel plate shell, the enamel steel plate is coated with an enamel coating with the same thickness of the porcelain layer on the inner and outer sides of the steel plate, and a top vertical stirrer vertically inserted in the reactor is arranged in the shell , an oblique stirrer inserted obliquely in the reactor and a bottom side stirrer at the bottom of the reactor.

Preferably, the top vertical stirrer is inserted into the shell from the top of the shell, its upper end is connected to the top of the shell, the bottom of the top vertical stirrer is fixed on the bottom of the shell through a base, and the bottom of the top vertical stirrer and the base between rotatable connections.

Preferably, the oblique agitator is obliquely inserted into the housing from one side of the housing, and its position close to the bottom of the housing is fixed on the bottom of the housing through a short support rod, and the oblique agitator and the short support rod are rotatably connected, The top of the oblique stirrer is rotatably connected with the top of the oblique stirrer support outside the casing.

Preferably, there is a positive and negative pressure protector, and one end port of the positive and negative pressure protector passes through the shell and communicates with the inside of the shell.

Preferably, a lightning rod is arranged on the top of the housing.

Preferably, an observation window is provided on the casing.

Preferably, the thickness of the porcelain layer is 0.2 to 0.5 mm.

Preferably, a ladder is provided outside the reactor.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

The enamel steel plate is coated with enamel coating on the inner and outer sides of the steel plate, and the steel plate is heated and polymerized to form a strong bonding force between the enamel layer and the steel plate. The protective layer formed by the enamel coating can not only prevent the reactor from corroding, but also has the characteristics of resistance to strong acid, strong alkali and high temperature, which is not only beneficial to the reaction, but also greatly improves the service life of the reactor. Moreover, the three different agitators in the reactor can basically stir all the biogas raw materials in the reactor, so that the biogas raw materials can be more fully mixed and reacted.

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

As shown in Figure 1, the utility model is a biogas reactor, comprising an enamel steel plate shell 1, the enamel steel plate is coated with an enamel coating on the inner and outer sides of the steel plate, the thickness of the porcelain layer is preferably 0.2 to 0.5 mm, and this thickness is just It can effectively prevent corrosion. If the thickness is too thick, the material will be wasted and the cost will be increased. Therefore, the thickness within this range is optimal. A top vertical stirrer 2 inserted vertically into the reactor, an inclined stirrer 3 inserted obliquely into the reactor, and a bottom side stirrer 4 at the bottom of the reactor are provided in the shell 1 . The top vertical stirrer 2 takes into account the power problem. Generally, the stirring blade 11 is not very long, and the stirring range is limited. It cannot stir all the biogas raw materials inside the reactor, and it can only stir in the horizontal direction. The oblique stirrer 3 Oblique stirring, combined with vertical stirring, so that the biogas raw materials can be better stirred and mixed for reaction. However, in order to match the large space of the reactor, the top vertical agitator and the oblique agitator are generally larger, and the bottom of the reactor becomes a dead angle, and the bottom side agitator 4 can solve this problem. Three different agitators can basically stir all the biogas raw materials in the reactor, so that the biogas raw materials can be more fully mixed and reacted. Both the oblique stirrer 3 and the bottom side stirrer 4 can be multiple and uniformly distributed along the circumferential direction of the reactor.

The enamel steel plate is coated with enamel coating on the inner and outer sides of the steel plate, and the steel plate is heated and polymerized to form a strong bonding force between the enamel layer and the steel plate. The protective layer formed by the enamel coating can not only prevent the reactor from corroding, but also has the characteristics of resistance to strong acid, strong alkali and high temperature, which is not only beneficial to the reaction, but will not reduce the service life of the reactor.

Preferably, the top vertical stirrer 2 is inserted into the shell 1 from the top of the shell 1, its upper end is connected to the top of the shell 1, the bottom end of the top vertical stirrer 2 is fixed on the bottom of the shell 1 through a base, and the top vertical stirrer Rotatable connection between the bottom end of 2 and the base. Both ends of the top vertical stirrer are fixed on the housing to prevent the stirring blades of the stirrer from swinging unstable when rotating at high speed.

Preferably, the oblique agitator 3 is obliquely inserted into the housing 1 from one side of the housing 1, and its position close to the bottom of the housing 1 is fixed on the bottom of the housing 1 by a short support rod 5. The oblique agitator 3 and the short support The rods 5 are rotatably connected, and the top of the oblique agitator 3 is rotatably connected to the top of the oblique agitator support 6 outside the housing 1 . The oblique mixer is also fixed at two points so that the oblique mixer will not swing unsteadily when stirring. In order to ensure the balance of the internal and external pressure of the housing 1 , preferably, there is also a positive and negative pressure protector 7 , and one port of the positive and negative pressure protector 7 passes through the housing 1 and communicates with the inside of the housing 1 .

Since the reactors are generally outdoors, in order to prevent lightning strikes, a lightning rod 8 is preferably arranged on the top of the casing.

In order to facilitate the observation of the reaction conditions in the reactor for manipulation as required, an observation window 9 is preferably provided on the outer shell.

In order to facilitate the operation at the height of the reactor, it is preferable to equip a ladder 10 outside the reactor. The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. A biogas reactor, characterized in that: it comprises an enamel steel plate shell, and the enamel steel plate is coated with an enamel coating with the same thickness of the porcelain layer on the inner and outer sides of the steel plate. The top vertical stirrer inside, the inclined stirrer inserted into the reactor obliquely and the bottom side stirrer at the bottom of the reactor. 2. The biogas reactor according to claim 1, characterized in that: the top vertical stirrer is inserted into the shell from the top of the shell, its upper end is connected to the top of the shell, and the bottom end of the top vertical stirrer is fixed on the The bottom of the housing, the bottom end of the top vertical stirrer and the base are rotatably connected. 3. The biogas reactor according to claim 1, characterized in that: the oblique stirrer is obliquely inserted into the shell from one side of the shell, and its position close to the bottom of the shell is fixed on the bottom of the shell by a short support rod, the The inclined stirrer and the short support rod are rotatably connected, and the top of the inclined stirrer is rotatably connected with the top of the inclined stirrer support outside the casing. 4. The biogas reactor according to claim 1, characterized in that there is a positive and negative pressure protector, and one port of the positive and negative pressure protector passes through the shell and communicates with the inside of the shell. 5. The biogas reactor according to claim 1, characterized in that: a lightning rod is arranged on the top of the casing. 6. The biogas reactor according to claim 1, characterized in that: an observation window is provided on the casing. 7. The biogas reactor according to any one of claims 1-6, characterized in that: the thickness of the porcelain layer is 0.2 to 0.5 mm. 8. The biogas reactor according to any one of claims 1-6, characterized in that: a ladder is provided outside the reactor. the

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