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CN-118579909-B - Vortex lifting sewage treatment device and technology

CN118579909BCN 118579909 BCN118579909 BCN 118579909BCN-118579909-B

Abstract

The invention belongs to the technical field of petrochemical industry, and particularly relates to a vortex lifting sewage treatment device and a process, wherein the device comprises a main pipeline, a dosing point, a water separator, a sewage processor, a slag discharging structure, a water discharging structure and a mud discharging structure; the sewage treatment device comprises a main pipeline, a lifting pump, a medicine adding point, a water separator, a slag discharging structure, a drainage structure and a sludge discharging structure, wherein the main pipeline conveys sewage into the sewage treatment device for treatment through the lifting pump, the medicine adding point is used for adding a lifting agent, a coagulant and a flocculant into the main pipeline, the water separator is provided with a plurality of branch pipes for separating sewage which is injected into the main pipeline into a plurality of vortex reaction cylinders which are then injected into the sewage treatment device, the slag discharging structure is used for discharging scum generated by sewage treatment, the drainage structure is used for discharging purified water generated by sewage treatment, and the sludge discharging structure is used for discharging sludge generated by sewage treatment. The invention improves the speed and efficiency of sewage treatment, reduces the power consumption, and solves the problem that the vertical device cannot be installed due to insufficient space height of a factory.

Inventors

  • HONG YANG
  • YAN SHEN

Assignees

  • 天津昌海江汉石油机械装备有限公司

Dates

Publication Date
20260512
Application Date
20240603

Claims (9)

  1. 1. The vortex lifting sewage treatment device is characterized by comprising a main pipeline, a dosing point, a water separator, a sewage treatment device, a slag discharging structure, a water discharging structure and a mud discharging structure; the main pipeline conveys sewage into a sewage processor through a lifting pump for treatment; the sewage treatment device comprises a cylindrical barrel body of a horizontal structure, wherein the barrel body is a closed pressure-bearing container with sealing heads at two ends, and a plurality of vortex reaction barrels are arranged in the barrel body side by side; the dosing point is used for adding a lifting agent, a coagulant and a flocculant into the main pipeline; The water separator is arranged on the main pipeline, and is used for dividing the sewage injected into the main pipeline into a plurality of branch pipes so as to be injected into a plurality of vortex reaction cylinders in the sewage processor; The slag discharging structure is arranged at the top of each vortex reaction cylinder and is used for discharging scum generated by sewage treatment; The drainage structure comprises a water collecting coil pipe arranged below each vortex reaction cylinder and a drainage pipe communicated with all the water collecting coils, wherein the purified water generated by the vortex reaction cylinders enters the water collecting coils for storage and then is discharged through the drainage pipes; the sludge discharge structure is arranged at the bottom of each vortex reaction cylinder and is used for discharging sludge generated by sewage treatment.
  2. 2. The vortex lifting sewage treatment device according to claim 1, wherein the dosing point comprises a lifting agent dosing point, a mixing pump, a coagulant dosing point and a flocculant dosing point, wherein the lifting agent dosing point and the mixing pump are arranged on a bypass pipeline communicated with a main pipeline, the lifting agent is required to be dosed to the lifting agent dosing point firstly in the working process and then is mixed with sewage through the mixing pump and is injected into the main pipeline, the coagulant dosing point and the flocculant dosing point are arranged on the main pipeline, and after the lifting agent is dosed, the coagulant and the flocculant are sequentially added, and the coagulant and the flocculant are separated from each other by 1-10 minutes.
  3. 3. The vortex lifting sewage treatment device according to claim 1, wherein the deslagging structure comprises an upper sludge discharge pipe and a scum collector arranged on the upper sludge discharge pipe, and a scum collector is arranged above each vortex reaction cylinder.
  4. 4. The vortex lifting sewage treatment device as recited in claim 1, wherein the water collecting coil is a circular perforated pipe, and a water outlet end of the water collecting coil is connected with a water discharge pipe.
  5. 5. The vortex lifting sewage treatment device as recited in claim 1, wherein the sludge discharging structure comprises a lower sludge discharging pipe arranged below the sewage treatment device.
  6. 6. The sewage treatment process of the scroll lift sewage treatment apparatus according to claim 1, comprising the steps of: S1, lifting sewage by a lifting pump, entering a dosing point, adding a lifting agent through a bypass pipeline of the dosing point, mixing by a mixing pump, entering a main pipeline, adding a coagulant, adding a flocculating agent after 1-10 minutes, uniformly distributing the flocculating agent to branch pipes of each path by a water separator, and respectively delivering the flocculating agent to a vortex reaction cylinder by the branch pipes; s2, in the vortex reaction cylinder, sewage is fully mixed with a lifting agent, a coagulant and a flocculant to react to form sludge; S3, the sludge adsorbs impurities in the sewage and is combined with a lifting agent, the sludge rises in a vortex reaction cylinder in a vortex manner, enters a mud-water separation area after rising to the top of the vortex reaction cylinder, is lifted to the top of a processor cylinder by the lifting agent, enters a scum collector and is discharged out of the device through an upper sludge discharge pipe; s4, after separating sewage from sludge, generating purified water, entering a water collecting coil at the lower part, and conveying the purified water to subsequent equipment through a drain pipe to finish the purification of the sewage; s5, settling the sludge which does not float up to the bottom of the sewage processor cylinder body, and discharging the sludge out of the device through a sludge discharge pipe.
  7. 7. The wastewater treatment process of the vortex lifting wastewater treatment device of claim 6, wherein the lifting agent is mineral oil or plastic powder, and the adding amount is 30-3000PPM.
  8. 8. The wastewater treatment process of the vortex lifting wastewater treatment device of claim 6, wherein the coagulant is one or more of polyaluminum chloride, polyferric sulfate and ferric trichloride, and the adding amount is 30-10000PPM.
  9. 9. The wastewater treatment process of the vortex lifting wastewater treatment device of claim 6, wherein the flocculant is one or more of polyacrylamide and sodium polyacrylate, and the adding amount is 2-100PPM.

Description

Vortex lifting sewage treatment device and technology Technical Field The invention belongs to the technical field of petrochemical industry, and particularly relates to a vortex lifting sewage treatment device and a vortex lifting sewage treatment process. Background Municipal wastewater treatment systems are a multi-stage treatment process designed to reduce or remove organics, solids content, and viral pathogens before the wastewater is discharged into natural water systems. The different natural water systems have their own acceptable discharge limitations, the purpose of which is to ensure that the quality of the natural water system is not affected or reduced when the treated water is discharged into the natural water system. The current sewage treatment equipment is to settle the sludge generated during treatment to the bottom (except air floatation), the purpose of purifying sewage is achieved by discharging the sludge from the bottom, the whole density of the formed sludge is reduced due to the adsorption of the oil or the light-density impurities in the water because the oil or the light-density impurities are contained in the water, the sinking speed is reduced, if the adsorbed oil is enough, the whole density is less than that of the water, the sludge floats up to the water surface, the original designed sludge sinking equipment cannot play a role, and the sewage cannot be treated. Disclosure of Invention The invention aims to provide a sewage treatment device, in particular to a closed and efficient sewage treatment device and a process developed by vortex lifting, which are applied to sewage treatment, in particular to sewage treatment containing oil or other impurities which are not easy to settle; the space height is low, and is not suitable for a sewage treatment station installed by a vertical tank, and the sewage treatment station is movable. In order to achieve the above purpose, the present invention provides the following technical solutions: a vortex lifting sewage treatment device comprises a main pipeline, a dosing point, a water separator, a sewage processor, a slag discharging structure, a water discharging structure and a mud discharging structure; the main pipeline conveys sewage into a sewage processor through a lifting pump for treatment; the sewage treatment device comprises a cylindrical barrel body of a horizontal structure, wherein the barrel body is a closed pressure-bearing container with sealing heads at two ends, and a plurality of vortex reaction barrels are arranged in the barrel body side by side; the dosing point is used for adding a lifting agent, a coagulant and a flocculant into the main pipeline; The water separator is arranged on the main pipeline, and is used for dividing the sewage injected into the main pipeline into a plurality of branch pipes so as to be injected into a plurality of vortex reaction cylinders in the sewage processor; The slag discharging structure is arranged at the top of each vortex reaction cylinder and is used for discharging scum generated by sewage treatment; the drainage structure is arranged at the bottom of each vortex reaction cylinder and is used for draining purified water generated by sewage treatment, and the drainage structure comprises a water collecting coil pipe arranged below each vortex reaction cylinder and a drainage pipe communicated with all the water collecting coil pipes, wherein the purified water generated by the vortex reaction cylinders enters the water collecting coil pipes to be stored, and then is drained through the drainage pipe. The sludge discharge structure is also arranged at the bottom of each vortex reaction cylinder and is used for discharging sludge generated by sewage treatment. The technical scheme is that the dosing point comprises a lifting agent dosing point, a mixing pump, a coagulant dosing point and a flocculant dosing point, wherein the lifting agent dosing point and the mixing pump are arranged on a bypass pipeline communicated with a main pipeline, and the lifting agent is required to be firstly dosed to the lifting agent dosing point in working and then mixed with sewage through the mixing pump and is injected into the main pipeline. The coagulant adding point and the flocculant adding point are arranged on a main pipeline, and after the lifting agent is added, the coagulant and the flocculant are sequentially added, and the coagulant and the flocculant adding point are separated by 1-10 minutes. The slag discharging structure comprises an upper mud discharging pipe and a scum collector arranged on the upper mud discharging pipe, and a scum collector is arranged above each vortex reaction cylinder. As a preferable technical scheme, the sludge discharging structure comprises a lower sludge discharging pipe arranged below the sewage processor. As an optimal technical scheme, the water collecting coil pipe is a circular perforated pipe. The process for vortex lifting of the sewage treatme