Scum discharge assisting device for pressure rotational flow reaction tank

Abstract

The utility model discloses a scum discharge assisting device for a pressure rotational flow reaction tank, and belongs to the field of scum discharge assisting devices. The scum discharge assisting device of the pressure rotational flow reaction tank comprises a steam distribution valve group, an air inlet pipe is arranged at the upper end of the steam distribution valve group, a connecting block is arranged at the lower end of the steam distribution valve group, the scum discharge assisting device further comprises an annular space steam heating pipe, and the annular space steam heating pipe is arranged at the lower end of the connecting block. An air spraying pipe is arranged at the end, away from the connecting block, of the annular space steam heating pipe, a limiting clamping groove is formed in the air spraying pipe, and a steam nozzle is arranged at the upper end of the air spraying pipe. The pressure spiral-flow type reaction tank solves the problems that oily scum in an existing pressure spiral-flow type reaction tank is high in viscosity and poor in flowability, the oily scum cannot be effectively recycled through an existing means, the qualified rate of water quality is low, and the treatment capacity is reduced due to blockage of a water outlet pipeline.

Description

Technical Field

[0001] The utility model relates to the field of slag removal aids, in particular to a slag removal aid for a pressure cyclone reaction tank. Background Art

[0002] The pressure cyclone reactor is the core device of the oily wastewater treatment station, which has the functions of coagulation and sedimentation, oil collection, slag flushing and negative pressure mud discharge. After the oily wastewater enters the external reactor and is fully mixed with the reagent, it enters the inner cylinder of the reactor along the tangential direction through the reactor outlet pipeline to continue cyclone separation. After separation, most of the oily scum accumulates in the top center cylinder of the tank and the top of the annular space of the inner and outer cylinders, and the mud and water are separated at the bottom. The separated water enters the regulating water tank and enters the next process. The sludge is discharged through the negative pressure mud discharge system at the bottom. A slag flushing device is designed and installed in the tank. Because it is only installed on the upper part of the inner cylinder and the slag flushing position is relatively high, it can only flush the slag on the top of the inner cylinder, resulting in poor slag collection effect. Only an oil collection tank is set at the top of the annular space of the inner and outer cylinders, and no flushing device is designed, so the oily scum cannot be effectively recovered. When the scum is thick or the temperature is low in winter, it is more difficult to recover. It accumulates continuously in the tank and is finally discharged along the outlet pipe, resulting in a low water quality qualification rate in this treatment link.

[0003] The existing patented pressure cyclone reactor has the following problems: the oil scum contained in it has high viscosity and poor fluidity, cannot be effectively recovered by existing means, has a low water quality pass rate, and the outlet pipeline is blocked, resulting in reduced processing capacity. Utility Model Content

[0004] The purpose of the utility model is to provide a scum discharge aid device for a pressure cyclone reaction tank, which works by using the steam pressure to push the scum on the tank top to rotate continuously and flow to the discharge port. The device is composed of a steam main pipeline, a control valve group, an inner cylinder and annular space steam branch pipes and a steam nozzle. High-temperature steam is used to heat the scum and dirty oil on the top of the tank, reduce viscosity and increase fluidity. Steam heating pipelines are respectively set at the top of the inner cylinder and the upper part of the annular space of the inner and outer cylinders. While ensuring the fluidity of scum and sludge, the steam injection pressure is used to push the scum layer to rotate, so that the entire tank top scum is evenly heated and continuously circulates to the recovery port, solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag removal device for a pressure swirl reaction tank, comprising a steam distribution valve group, an air inlet pipe is arranged at the upper end of the steam distribution valve group, a connecting block is arranged at the lower end of the steam distribution valve group, and also comprises an annular space steam heating pipe, the annular space steam heating pipe is arranged at the lower end of the connecting block, an injection pipe is arranged on the end of the annular space steam heating pipe away from the connecting block, a limiting slot is provided on the injection pipe, a steam nozzle is arranged at the upper end of the injection pipe, a limiting block is provided in the limiting slot, a rotating guide pipe is arranged on the limiting block, an injection hole is provided on the rotating guide pipe, and a top cover is provided at the upper end of the rotating guide pipe.

[0006] Preferably, a connecting flange is provided at the upper end of the air intake pipe, and the connecting flange is welded to the air intake pipe.

[0007] Preferably, an airtight valve is provided on the middle section of the steam distribution valve group, and the airtight valve is bolted to the steam distribution valve group.

[0008] Preferably, a closing cover is provided on the outer surface of the steam distribution valve group, and the closing cover is welded to the steam distribution valve group.

[0009] Preferably, an observation hole is provided on the closing cover, and the observation hole and the closing cover are integrally arranged.

[0010] Preferably, a rubber gasket is provided at the lower end of the closing cover, and the rubber gasket is adhesively connected to the closing cover.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model is composed of a steam distribution valve group and an annular space steam heating pipe as the main body, and works on the principle of using the steam pressure to push the tank top scum to rotate continuously and flow to the discharge port. This device is composed of a steam main pipeline, a control valve group, an inner cylinder and annular space steam branch pipes and a steam nozzle. High-temperature steam is used to heat the tank top scum and dirty oil, reduce viscosity and increase fluidity. Steam heating pipelines are respectively set at the top of the inner cylinder and the upper part of the inner and outer cylinder annular spaces. While ensuring the fluidity of scum and sludge, the steam injection pressure is used to push the scum layer to rotate, so that the entire tank top scum is evenly heated and continuously circulates to the recovery port, effectively avoiding the problems of the existing pressure cyclone reaction tank, such as high viscosity and poor fluidity of the oil scum inside, the inability to effectively recover by existing means, low water quality qualification rate, and reduced processing volume caused by blockage of the outlet pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0014] Figure 2It is a schematic diagram of the overall main structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the overall top view structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the rotary guide tube of the utility model.

[0017] In the figure: 1. steam distribution valve group; 2. air inlet pipe; 3. connecting flange; 4. airtight valve; 5. closing cover; 6. connecting block; 7. annular space steam heating pipe; 8. jet pipe; 9. limit slot; 10. steam nozzle; 11. rotating guide pipe; 12. limit block; 13. jet hole; 14. top cover; 15. observation hole; 16. rubber gasket. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] In order to solve the problems in the prior art that the oil scum in the pressure cyclone reactor has high viscosity and poor fluidity, the existing means cannot effectively recover it, the water quality qualification rate is low, and the water outlet pipeline is blocked, resulting in reduced processing capacity, this embodiment provides the following technical solutions:

[0020] The scum removal device of the pressure cyclone reaction tank comprises a steam distribution valve group 1, an air inlet pipe 2 is arranged at the upper end of the steam distribution valve group 1, a connecting block 6 is arranged at the lower end of the steam distribution valve group 1, and an annular space steam heating pipe 7 is arranged at the lower end of the connecting block 6, an injection pipe 8 is arranged on the end of the annular space steam heating pipe 7 away from the connecting block 6, a limiting card slot 9 is provided on the injection pipe 8, a steam nozzle 10 is arranged at the upper end of the injection pipe 8, a limiting card block 12 is arranged in the limiting card slot 9, a rotating guide pipe 11 is arranged on the limiting card block 12, and the rotating guide pipe 11 is provided with a rotating guide pipe 12. 1 is provided with an air jet hole 13, a top cover 14 is provided at the upper end of the rotating guide pipe 11, a connecting flange 3 is provided at the upper end of the air inlet pipe 2, the connecting flange 3 is welded to the air inlet pipe 2, an airtight valve 4 is provided on the middle section of the steam distribution valve group 1, the airtight valve 4 is bolted to the steam distribution valve group 1, a closing cover 5 is provided on the outer surface of the steam distribution valve group 1, the closing cover 5 is welded to the steam distribution valve group 1, an observation hole 15 is provided on the closing cover 5, the observation hole 15 and the closing cover 5 are integrally arranged, a rubber gasket 16 is provided at the lower end of the closing cover 5, and the rubber gasket 16 is adhesively connected to the closing cover 5;

[0021] In this embodiment, please refer to Figure 1-Figure 4 The staff first uses the closing cover 5 to extend the annular space steam heating pipe 7 into the pressure cyclone reaction tank, and then connects the pipe with a steam generating device at one end to the air inlet pipe 2 through the connecting flange 3, and opens the airtight valve. The steam can be ejected through the steam nozzle 10 arranged on the annular space steam heating pipe 7. In order to prevent the steam from being ejected only at a fixed angle, which will cause the temperature of the area where the steam is ejected from the front to be much higher than the ambient temperature and cause uneven temperature rise, a rotating guide pipe 11 is arranged on the steam nozzle 10. Because the jet hole 13 opened on the rotating guide pipe 11 obliquely penetrates the rotating guide pipe 11, the steam ejected from the steam nozzle 10 first contacts the inner wall of the rotating guide pipe 11, and then ejects from the jet hole 13. Because the jet hole 13 is arranged obliquely, a backward thrust is generated when the steam is ejected, which will cause the rotating guide pipe 11 to start rotating, so that the steam is evenly sprayed.

[0022] Working principle: The staff first uses the closing cover 5 to extend the annular space steam heating pipe 7 into the pressure cyclone reaction tank, and then connects the pipe with a steam generating device at one end to the air inlet pipe 2 through the connecting flange 3, and opens the airtight valve. The steam can be ejected through the steam nozzle 10 arranged on the annular space steam heating pipe 7. In order to prevent the steam from being ejected only at a fixed angle, which will cause the temperature of the area where the steam is ejected from the front to be much higher than the ambient temperature and cause uneven temperature rise, a rotating guide pipe 11 is arranged on the steam nozzle 10. Because the jet hole 13 opened on the rotating guide pipe 11 obliquely penetrates the rotating guide pipe 11, the steam The steam ejected from the steam nozzle 10 first contacts the inner wall of the rotating guide tube 11, and then ejects from the jet hole 13. Because the jet hole 13 is set obliquely, the steam generates a backward thrust when it is ejected, which will cause the rotating guide tube 11 to start rotating, so that the steam is evenly sprayed. The upper end of the pressure cyclone reaction tank itself is provided with a hole, and the closing cover 5 is used in conjunction with this hole. It can be generally understood that a lid is used in conjunction with a tank, and then an annular space steam heating pipe 7 is provided below the closing cover 5. When the closing cover 5 is covered on the pressure cyclone reaction tank, the annular space steam heating pipe 7 located below the closing cover 5 naturally extends into the pressure In the cyclone reaction tank, the limit card block 12 and the limit card slot 9 are also used in conjunction with each other. The purpose is that the limit card block 12 is inserted into the limit card slot 9, so that the rotating guide tube 11 is sleeved on the steam nozzle 10, so that the rotating guide tube 11 will not be pushed up when the steam nozzle 10 sprays steam. The reason for using the limit connection to fix the rotating guide tube 11 and the steam nozzle 10 is that when the steam is sprayed, there must be a certain amount of activity space between the rotating guide tube 11 and the steam nozzle 10 and it cannot be fixed. The setting of the top cover 14 is to seal the upper end of the rotating guide tube 11, so that most of the steam is sprayed from the jet hole 13, and there will also be a A small part of the steam is ejected from the lower end of the unsealed rotary guide tube 11, but because of the obstruction of the limit block 9, the kinetic energy of the steam will not be lost much. The purpose of setting the rubber gasket 16 is to fill the gap between the closing cover 5 and the pressure cyclone reaction tank when the closing cover 5 is covered on the pressure cyclone reaction tank. As mentioned in the background technology, when the existing pressure cyclone reaction tank is actually used, if the external environment temperature is low, the scum in the pressure cyclone reaction tank is thicker and easier to solidify, the viscosity increases, and the recovery is more difficult. The utility model utilizes the annular space steam heating tube 7 to heat the scum, which increases the fluidity of the scum, so it is convenient to recover the scum.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scum removal device for a pressure cyclone reaction tank, comprising a steam distribution valve group (1), an air inlet pipe (2) being arranged at the upper end of the steam distribution valve group (1), and a connection block (6) being arranged at the lower end of the steam distribution valve group (1); Features: It also comprises an annular space steam heating pipe (7), the annular space steam heating pipe (7) being arranged at the lower end of the connecting block (6), the annular space steam heating pipe (7) being provided with an injection pipe (8) at one end away from the connecting block (6), the injection pipe (8) being provided with a limit card slot (9), the upper end of the injection pipe (8) being provided with a steam nozzle (10), the limit card slot (9) being provided with a limit card block (12), the limit card block (12) being provided with a rotating guide pipe (11), the rotating guide pipe (11) being provided with an injection hole (13), and the upper end of the rotating guide pipe (11) being provided with a top cover (14).

2. The device for assisting the removal of slag from a pressure cyclone reactor according to claim 1, characterized in that: A connecting flange (3) is provided at the upper end of the air intake pipe (2), and the connecting flange (3) is connected to the air intake pipe (2) by welding.

3. The device for assisting the removal of slag from a pressure cyclone reactor according to claim 1, characterized in that: An airtight valve (4) is provided on the middle section of the steam distribution valve group (1), and the airtight valve (4) is bolted to the steam distribution valve group (1).

4. The device for assisting the removal of slag from a pressure cyclone reactor according to claim 1, characterized in that: The outer surface of the steam distribution valve group (1) is provided with a closing cover (5), and the closing cover (5) is welded to the steam distribution valve group (1).

5. The device for assisting the removal of slag from a pressure cyclone reactor according to claim 4, characterized in that: An observation hole (15) is provided on the closing cover (5), and the observation hole (15) and the closing cover (5) are integrally arranged.

6. The device for assisting the removal of slag from a pressure cyclone reactor according to claim 5, characterized in that: A rubber gasket (16) is provided at the lower end of the closing cover (5), and the rubber gasket (16) is adhesively connected to the closing cover (5).

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