TWI637914B - Steam heating type sewage treatment equipment - Google Patents

Abstract

The invention relates to a steam heating type sewage treatment device, the structure comprising a treatment tank body, wherein the treatment tank body is provided with a stirring device, and the outer wall of the tank is provided with a steam heating device for heating the tank body; It is disposed at the top of the processing tank and is connected by a pipeline; another temperature rising device is connected to the vacuuming component in a pipeline, and the heating device is further connected with a steam storage tank by a pipeline, and the steam storage tank is further connected by a tube. The road is connected to the steam heating device, and the waste liquid steam introduced through the vacuuming unit and the communication line is pressurized or warmed by the temperature increasing device, and after the temperature is raised, the steam is guided into the steam heating device via the pipeline. In order to achieve the effect of recycling steam recycling.

Description

Steam heated sewage treatment equipment

The present invention is a soil treatment apparatus, and more particularly to an improved structure of a steam heating type dirt treatment apparatus.

There are various methods and devices for the treatment of dirt in the prior art, such as physical treatment using a grid or a filter and a sedimentation tank, and processing using biological treatment equipment. Such conventional treatment involves multiple filtrations. The device and the sedimentation device are both large and complicated, and the floor space is large, which is not suitable for small and medium-sized enterprises. The processing result is affected by many aspects, and it is difficult to achieve the desired effect for solid-liquid separation, because the effect is not good. Substances that can be reused in the soil are difficult to separate and reuse, resulting in great waste of resources.

Due to the deficiencies of the above-mentioned conventional techniques, the creator has previously created a one-stop sewage treatment device (China Utility Invention Authorization Announcement No.: CN 204675846 U), which is capable of one-stop sewage treatment, sludge, floc The oil-water mixture is awaiting the treatment of the waste liquid by means of negative pressure distillation, and the solid and oil substances in the waste liquid are separated, wherein the liquid is evaporated and condensed and separated, and the solid residue after drying and concentration is discharged separately, and then recycled if necessary. The device injects a hot fluid into the interlayer of the processing tank, and uses the heat exchange between the hot fluid and the waste liquid in the processing tank to raise the temperature of the liquid component therein to a corresponding boiling point at a certain pressure, thereby Evaporation and condensation recovery; currently the device is used in equipment that uses steam as a heat source. In the process of heat exchange, the steam after boiling is directly discharged through the pipeline or recovered by condensation, and direct discharge is a waste of energy. And the condensing device condenses the steam into moisture for reuse, although the steam condenses into water The points have been reused, but the condensing unit has been added. The space occupied by the overall equipment and its cost will also increase, and the steam latent heat is not effectively used to form waste. This part is still necessary for further improvement.

In order to solve the problems still existing in the prior art, the utility model improves the original steam-heating type sewage treatment device, which can recover and heat the low-temperature steam generated by the waste liquid in the treatment tank, and then guide the steam after the temperature rise. Returning to the equipment, heating the treatment tank as a supplementary heat source can greatly reduce energy waste and achieve energy and cost savings.

It is an object of the present invention to provide a steam-heated sewage treatment apparatus which can recover steam generated by a sewage treatment process and reheat it.

In order to achieve the foregoing object, the present invention improves the structure of the original steam-heated sewage treatment equipment, firstly removing the system structure for condensing waste liquid steam, and guiding the low-temperature steam generated in the treatment tank to a temperature rising device, utilizing The heating device increases the temperature of the steam, and then uses the pipeline structure to guide the steam having reached the required temperature into the steam inlet pipe of the heat treatment tank, thereby supplementing the heating steam to reduce the amount of external steam. In addition to the economic benefits of eliminating the condensing device, the cycle can fully utilize the waste liquid steam and its latent heat, which has the practical value of saving energy, greatly improving the thermal efficiency of the equipment, and meeting the low-cost and environmental protection and energy-saving improvement requirements.

The technical solution of the present invention comprises: a processing tank body connected to the dirt supply pipeline, the processing tank body is internally disposed with a stirring device, and the outer wall of the processing tank body is provided with a steam heating device, and the processing tank body is disposed above There is further provided a vacuuming component, wherein the vacuuming component is connected to the inside of the processing tank by a pipeline, and the vacuuming component is connected to the heating device by another pipeline, and the heating device is connected to a steam storage by a pipeline. The gas tank, the steam storage tank is connected to the steam inlet pipe of the steam heating device, and the steam is recovered and supplied.

Preferably, the temperature increasing device may be a centrifugal steam compressor, and the introduced steam is pressurized and heated by a steam compressor and then supplied to the heating device.

Preferably, the temperature increasing device may be a heat pump for heating and recovering steam and then feeding the same to the heating device.

Preferably, the communication line between the vacuuming member and the steam compressor is provided with a steam recycling valve, a steam trap, a steam wastewater collecting tank and the like.

Preferably, a connecting member such as a steam filter and a steam expansion valve is disposed on the communication line between the vacuuming member and the heat pump.

Preferably, a steam recirculation valve is additionally provided on the pipeline connecting the steam storage tank to the steam heating device.

Accordingly, the present invention can effectively recover waste steam by using the above-mentioned device components, and the recovered steam is warmed by the temperature rising device, and then guided to the steam input pipe to be merged into the steam heating device to achieve the best benefit of steam recovery and utilization.

The techniques, means, and effects of the present invention in order to achieve the above objects are set forth in the accompanying drawings.

Referring to FIG. 1, the present invention provides a steam-heated sewage treatment apparatus, the basic structure of which comprises a treatment tank 1 which is connected to a dirt supply device through a dirt input line 20. The waste to be treated can be processed by the dirt supply device into the treatment tank 1 through the dirt input line 20; a stirring device 2 is positioned and disposed inside the treatment tank 1, and the stirring device 2 includes a treatment tank A radially-arranged agitating shaft 21 is fixed on the agitating shaft 21 with a plurality of blades 22 radiating outwardly around the agitating shaft 21, and the agitating shaft 21 is disposed at one end of the processing tank body 1 and is additionally provided with a transmission device 23, when the agitating shaft 21 is driven by the transmission device 23 to rotate the blade 22, the dirt inside the can body can be sufficiently stirred.

The steam heating device 3 is designed as a set of tank sleeves disposed on the outer wall of the processing tank body. The bottom ends of the tank sleeves are respectively connected with a steam inlet pipe member 4 and a steam output pipe member 5, so that the heated steam can pass through the steam. The input pipe member 4 enters the steam heating device 3 and is discharged by the steam input pipe member 5.

A vacuuming member 6 (vacuum pump) is fixed on the top of the processing tank 1, and the vacuuming member 6 is connected to the first communication line 7 to communicate with the interior of the processing tank 1, which is processed during the sewage treatment. The can body 1 is heated by the steam heating device 3, and the vacuuming member 6 is activated to make the inside of the processing can body 1 under a negative pressure state. The lower the pressure, the lower the boiling point of the liquid, the lower the boiling point of the liquid inside the processing tank 1 can be accelerated. The evaporation thereof can also accelerate the evaporation of the liquid in the tank by the agitation of the stirring device 2, and the steam is released to the outside through the first communication line 7. Finally, the dried dirt remaining after the liquid is separated by heating and evaporation will be The agitating and pushing of the agitating device 2 is performed by discharging the slag opening 19 on the bottom side of the can body 1.

The aforementioned conventional components are the partial structural contents of this creation, and the innovative improvements of this creation are also described as follows:

A temperature rising device 8 communicates with the vacuuming member 7 through a second communication line 9, which may be a centrifugal steam compressor, and a second hydrophobic conduit 9 is provided with a hydrophobic portion near the temperature increasing device 8. And a first steam recovery valve 14 is disposed between the steam trap 13 and the vacuuming member 6. The first steam recovery valve 14 can be designed as a one-way valve for controlling the steam one-way. The steam trap 13 is introduced into the steam trap 13 and the steam is separated by the steam trap 13 so that the separated liquid can directly flow into the waste water collecting tank 15 disposed under the steam trap 13, and the separated steam is The centrifugal steam compressor is sucked in, and the incoming steam is pressurized by the centrifugal steam compressor, so that the temperature thereof is greatly increased.

The temperature rising device 8 (centrifugal steam compressor) supercharges the heated steam, and further enters a steam storage tank 11 through a third communication line 10; a fourth storage line 12 is respectively connected with a steam storage gas The tank 11 and the steam input pipe member 4 are additionally provided with a second steam return valve 18. When the high temperature steam in the steam storage tank 11 reaches a certain amount and pressure, the steam in the tank can be passed through The fourth communication line 12 controls the one-way input steam input pipe 4 through the second steam recovery valve 18, and then enters the steam heating device 3 together with the externally input steam to heat the treatment tank 1, so that it reciprocates. The above structure is used to recover steam and reused in the heat treatment tank body 1, thereby eliminating the condensing equipment required for condensing and recovering steam, and more effectively utilizing the latent heat of the waste liquid steam, and the overall design is more economical and practical than existing technologies. Effect.

Referring to FIG. 2, another embodiment of the present invention has a treatment tank 1, a stirring device 2, a steam heating device 3, a steam input pipe member 4, a steam output pipe member 5, and a vacuuming member 6, as in the above embodiment. The corresponding arrangement of the components is also the same, and the vacuuming member 6 is also in communication with the processing tank 1 through the first communication line 7, and the vacuuming member 6 is also connected to a temperature rising device 8 by means of the second communication line 9. .

The main change of this embodiment is that the temperature rising device 8 can be designed as a heat pump structure, by which the recovered steam entering the room is heated, and then the warmed steam is introduced into the steam storage tank 11 through the third communication line 10. When the high temperature steam in the steam storage tank 11 reaches a certain amount and pressure, the steam in the tank can be controlled via the fourth communication line 12, and the unidirectional input steam input pipe 4 is controlled by the second steam return valve 18, and then The externally input steam is mixed into the steam heating device 3 for heating the tank body 1; the second communication line 9 is connected between the vacuuming unit 6 and the heating device 8 (heat pump) for recycling and recycling. A steam filter 16 and a steam control valve 17 are provided for filtering floating impurities, water vapor and controlling steam flow, and can also be replaced by steam recirculation valves, steam traps, waste water collection tanks and the like as in the foregoing embodiments. The steam filter 16 and the steam control valve 17, wherein the use of the steam trap 13 and the waste water collection tank 15 are mainly to separate and remove moisture to protect the temperature rising device 8, if other equivalent temperature increasing devices are used. The steam trap and the waste water collection tank are not separately disposed according to the actual situation, and therefore, the components of the first steam recovery valve 14, the steam trap 13, the waste water collection tank 15, the steam filter 16, and the steam control valve 17 can be visually recognized by the heating device 8. Optional or replaced by equivalent components, the use of each component is based on the principle of practical requirements.

At the time of the creation of the present invention, when the sewage treatment equipment is just started, the externally heated high-temperature steam is introduced into the steam heating device 3 to heat the treatment tank 1, and the inside of the treatment tank 1 is subjected to a negative pressure by the vacuuming member 6. When the liquid in the tank reaches a low boiling point corresponding to the pressure, it can be evaporated into steam to be sucked out of the treatment tank body 1, and then the steam is recovered by the pipeline and introduced into the heating device 8 (heat pump) to be heated and heated, and then passed through the steam storage tank. 11 and the fourth communication line 12 are re-introduced into the steam inlet pipe member 4, and mixed with the external steam to enter the steam heating device 3 for heating the tank body 1, so that the steam can be continuously generated in the tank body 1 The creation is recycled and reused in the heat treatment tank 1, which will cause the demand for external steam to start to be greatly reduced after the equipment is started to generate the recovered steam, and the structural design does not require the condensation equipment required for steam condensation recovery. It is more able to recycle the latent heat of waste steam to achieve the most effective use, which can improve the progressive and practical value of existing technologies.

In summary, the foregoing embodiments and drawings are only preferred embodiments of the present invention. When the scope of implementation of the patent cannot be limited thereto, the design and modification that are equally changed according to the creation should belong to the patent. The scope covered.

Treatment tank 1 Stirring device 2 Steam heating device 3 Steam input pipe 4 Steam output pipe 5 Vacuuming unit 6 First communication line 7 Temperature rising device 8 Second communication line 9 Third communication line 10 Steam storage tank 11 Fourth communication line 12 Steam trap 13 First steam recovery valve 14 Waste water collection tank 15 Steam filter 16 Steam control valve 17 Second steam recovery valve 18 Slag outlet 19 Dirt input line 20 Stirring shaft 21 Blade 22 Transmission 23

1 is a schematic structural view of a first embodiment of the present invention. 2 is a schematic structural view of a second embodiment of the present invention.

Claims (4)

The utility model relates to a steam heating type sewage treatment device, which comprises: a processing tank body; a stirring device is positioned and disposed inside the processing tank body; a steam heating device is disposed on the outer wall of the processing tank, and the bottom ends of the steam heating device are respectively a steam input pipe member and a steam output pipe member are connected; a vacuuming member is fixed on the top of the processing tank body, and the vacuuming member is connected with a first communication pipe to communicate with the interior of the processing tank body; a temperature rising device is connected to the vacuuming member through a second communication line, and the temperature increasing device is further connected to a steam storage tank through a third communication line, the steam storage tank and the steam input A fourth communication line is further connected between the tube members, wherein the second communication line is provided with a steam trap near the temperature rising device, and a first portion is disposed between the steam trap and the vacuuming member. a steam recycling valve, a waste water collecting tank is arranged below the steam trap, and the second connecting pipeline is connected with a vacuuming device to the heating device, and is equipped with a steam filter and steam control . The steam-heated sewage treatment apparatus of claim 1, wherein the temperature increasing device is a centrifugal steam compressor. The steam-heated sewage treatment apparatus of claim 1, wherein the temperature increasing device is a heat pump. The steam-heated sewage treatment device of claim 1, wherein the fourth communication line is further provided with a second steam recovery valve.