CN205773725U - A kind of skid-mounted type well-drilling waste water processes and reuse means - Google Patents

Abstract

The open a kind of skid-mounted type well-drilling waste water of this utility model processes and reuse means, retort group that described device includes being sequentially connected with, filter-pressing device, pressurization fine filtering device, described retort group is composed in parallel by 2 retort, described filter-pressing device includes pressure filter, described pressurization fine filtering device includes fine filter, described pressure filter and described fine filter are respectively connected with air compressing device, and described device is workable, automaticity is higher, can be greatly saved human cost and avoid personal security hidden danger；It is greatly improved treatment effeciency, continuous processing can be realized.

Description

A skid-mounted drilling wastewater treatment and reuse device

technical field

The utility model relates to the technical field of wastewater treatment devices, in particular to a skid-mounted drilling wastewater treatment and reuse device.

Background technique

Drilling wastewater is a special industrial wastewater produced during the entire drilling operation. It is often considered to be a mixture of high dilution fluid and oil of mud, which contains petroleum, heavy metal salts, refractory organic matter, mud sand, bacteria, and viruses. It is an important component of oilfield wastewater, which is characterized by complexity, variability, and dispersion. Drilling wastewater is alternately dark brown and opaque, and its appearance is similar to soy sauce color after the oil layer is removed, with a strong pungent and rancid smell.

If the drilling wastewater is not treated effectively, it will have a great impact on the environment and cause a waste of water resources. The existing drilling wastewater treatment device has a low degree of automation, a large labor cost, and a low treatment efficiency. The treatment of a relatively large amount of drilling wastewater is relatively difficult.

Utility model content

In view of this, the application provides a skid-mounted drilling wastewater treatment and reuse device, which has strong operability and a high degree of automation, can greatly save labor costs and avoid potential safety hazards for personnel; can greatly improve treatment efficiency, Continuous processing is possible.

In order to solve the above technical problems, the technical solution provided by the utility model is a skid-mounted drilling wastewater treatment and reuse device. The reaction tank group is composed of two reaction tanks connected in parallel, the filter press device includes a filter press, the pressurized fine filter device includes a fine filter, and both the filter press and the fine filter are connected with an air pressure device.

Further, a water inlet pump is connected to the front end of the reaction tank group, and the reaction tank group is connected to the filter press device through a screw pump.

Further, the pressure filter device is connected to the pressurized fine filter device through a lift pump.

Furthermore, an adjustment tank is also provided between the filter press device and the lift pump.

Further, the reaction tank is a horizontal reaction tank, and a plate and frame stirrer is arranged in the reaction tank.

Further, a dosing device is provided on the upper part of the reaction tank, and the dosing device includes a dosing pump, a flow meter, and an automatic dosing controller.

Further, the inside of the reaction tank is provided with an automatic liquid level control device.

Further, a filter residue conveying device is provided at the lower part of the filter press, and the filter residue conveying device is a spiral conveyor belt, and a solid residue collecting device is connected to the rear end of the filter residue conveying device.

Further, a liquid distribution tank is also connected to the outlet of the fine filter.

Further, the air pressure device is respectively connected to the front end of the filter press and the top end of the fine filter.

Compared with the prior art, the present application is described in detail as follows: The technical scheme of the present application provides a skid-mounted drilling wastewater treatment and reuse device, which includes a reaction tank group connected in sequence, a filter press device, a pressurized A fine filter device, the reaction tank group is composed of 2 reaction tanks in parallel, the filter press device includes a filter press, the pressurized fine filter device includes a fine filter, and the filter press and the fine filter are connected There is an air compressor.

The working process of the device is as follows: the drilling wastewater is pumped into the reaction tank group through the water inlet pump, and the reaction tank group is composed of two parallel reaction tanks, and an automatic liquid level control device is installed inside the reaction tank to control the start-up of the water inlet pump. The horizontal reaction tank can be used to realize continuous destabilization coagulation treatment. The dosing device on the upper part of the reaction tank can realize automatic dosing according to the liquid level in the reaction tank. After the drilling wastewater is fully destabilized and coagulated in the reaction tank group Drive into the filter press device through a screw pump. The filter press device is connected with a filter press and an air pressure device, so that the water content of the mud cake after the filter press and drying is lower, and the separated solid phase enters the solid phase through the filter residue conveying device. The slag collection device, the separated liquid phase enters the regulating tank, and then is pumped into the pressurized fine filter device by the lift pump. The pressurized fine filter device is connected by the fine filter and the air pressure device to improve the fine filtration efficiency. Enter the liquid distribution tank for resource reuse.

The beneficial effect of the technical solution of the present application is that: the device greatly improves the processing efficiency through automatic liquid level control, automatic dosing control, filter residue transmission, etc.; With the help of the hydraulic system of the filter press, the solid-liquid separation is realized. At the same time, air can be added to further dry the filter cake during and after the separation process, which not only improves the solid-liquid separation efficiency, but also greatly increases the water content of the formed filter cake. reduce, which is beneficial to the follow-up treatment of the solid phase; the pressurized fine filter device is connected with the air pressure device through the fine filter, which can improve the efficiency of the fine filter and reduce the frequency of backwashing; the device adopts multi-system unit integration, The process is simple, the operability is strong, and the degree of automation is high, which can greatly save labor costs and avoid potential safety hazards for personnel; the device has a strong processing capacity and can realize continuous processing, and the treated water can be used to prepare drilling fluid, completion fluid or Fracturing fluid can also be used for cleaning drilling equipment or for other reuse.

Description of drawings

Fig. 1 is a schematic structural diagram of a skid-mounted drilling wastewater treatment and reuse device described in this application.

detailed description

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

A kind of skid-mounted drilling wastewater treatment and reuse device as shown in Figure 1, described device comprises reaction tank group 1, press filter device 2, pressurized fine filter device 3 connected successively, described reaction tank group 1 is composed of Two reaction tanks 4 are connected in parallel, the reaction tank 4 is a horizontal reaction tank, a plate and frame stirrer 5 is arranged in the reaction tank 4, a dosing device 6 is arranged on the top of the reaction tank 4, and a dosing device 6 is arranged on the top of the reaction tank 4. The medicine device 6 includes a medicine dosing pump (not shown in the figure), a flow meter (not shown in the figure), an automatic dosing controller (not shown in the figure), and the inside of the reaction tank 4 is provided with an automatic liquid level control system. Device 7; described filter press device 2 comprises filter press 8, and described pressure fine filter device 3 comprises fine filter 9, and described filter press 8 and described fine filter 9 are all connected with air compressor 10, and described The air compressor 10 is respectively connected to the front end of the filter press 8 and the top of the fine filter 9; the bottom of the filter press 8 is provided with a filter residue transfer device 11, and the filter residue transfer device 11 is a spiral conveyor belt. A solid residue collection device 12 is connected to the rear end of the filter residue transfer device 11 , and a liquid distribution tank 13 is also connected to the outlet of the fine filter 9 .

In addition, a water inlet pump 14 is connected to the front end of the reaction tank group 1, and a screw pump 15 is connected between the reaction tank group 1 and the filter press device 2. The connection between the filter press device 2 and the pressure fine filter device 3 They are connected by a lift pump 16, and an adjustment tank 17 is also arranged between the filter press device 2 and the lift pump 16.

The flow process of using the above-mentioned device to recycle the wastewater treatment agent is as follows: the drilling wastewater is injected into the reaction tank group 1 through the water inlet pump 14, and continuous destabilization and coagulation treatment can be realized. The dosing device 6 on the upper part of the reaction tank 4 can The level of the middle liquid level realizes automatic dosing, and the drilling waste water is fully destabilized and coagulated in the reaction tank group 1, and then pumped into the filter press device 2 through the screw pump 15. The filter press device 2 uses a filter press 8 and an air pressure The device 10 is connected to realize that the water content of the mud cake after pressing and drying is lower, the separated solid phase enters the solid residue collection device 12 through the filter residue conveying device 11, and the separated liquid phase enters the regulating tank 17, and then is pumped by the lift pump 16 It is injected into the pressurized fine filter device 3, and the water phase after fine filtration enters the liquid distribution tank 13 for resource recycling.

The above are only preferred implementations of the present utility model. It should be pointed out that the above-mentioned preferred implementations should not be regarded as limitations on the present utility model, and the protection scope of the present utility model should be based on the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the utility model, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims (10)

1. a skid-mounted type well-drilling waste water processes and reuse means, it is characterised in that: described device includes connecting successively The retort group that connects, filter-pressing device, pressurization fine filtering device, described retort group is composed in parallel by 2 retort, Described filter-pressing device includes that pressure filter, described pressurization fine filtering device include fine filter, described pressure filter and described fine straining Device is respectively connected with air compressing device.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described retort group front end connects intake pump, between described retort group and described filter-pressing device by screw pump even Connect.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: It is connected by elevator pump between described filter-pressing device with described pressurization fine filtering device.

A kind of skid-mounted type well-drilling waste water the most according to claim 3 processes and reuse means, it is characterised in that: A regulation tank it is additionally provided with between described filter-pressing device and described elevator pump.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described retort is horizontal reacting tank, is provided with frame type stirrer in described retort.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described retort top is provided with chemicals dosing plant, and described chemicals dosing plant includes dosing pump, effusion meter, Automatic Dosing control Device processed.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described retort is internally provided with liquid-level auto-control device.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described pressure filter bottom is provided with filtering residue transporter, and described filtering residue transporter is screw conveyor band, described filtering residue Transporter rear end connects solid slag collection device.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, it is characterised in that: Described fine filter exit is also associated with Agitation Tank.

A kind of skid-mounted type well-drilling waste water the most according to claim 1 processes and reuse means, and its feature exists In: described air compressing device is connected to front end and the top of described fine filter of described pressure filter.