CN210934340U

CN210934340U - Reverse-spraying pipe overflow weir pollution discharge device with back-flushing function

Info

Publication number: CN210934340U
Application number: CN201921743081.9U
Authority: CN
Inventors: 张冠华; 邓文彬; 万黎明; 李小伟; 黄文红
Original assignee: Daye Nonferrous Metals Co Ltd
Current assignee: Daye Nonferrous Metals Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-07-07
Anticipated expiration: 2029-10-17

Abstract

The utility model relates to the field of chemical production equipment, in particular to a reverse spray pipe overflow weir pollution discharge device with a back flushing function, which comprises a connecting pipe connected with an overflow weir pollution discharge port, wherein a tee joint A is arranged at the outer end of the connecting pipe, a pollution discharge pipe is arranged at one end of the tee joint A, a flushing pipe is arranged at the other end of the tee joint A, a tee joint B is arranged at the outer end of the flushing pipe, a water inlet pipe is arranged at one end of the tee joint B, an air inlet pipe is arranged at the other end of the tee joint B, the top end of the water inlet pipe is connected with a water source, one end of the air inlet pipe is connected with a compressed air source, a solenoid valve A is; the utility model discloses do benefit to the stable and dredge pipeline unblocked of liquid level in the weir groove, have higher practicality and reliability.

Description

Reverse-spraying pipe overflow weir pollution discharge device with back-flushing function

Technical Field

The utility model relates to a chemical production equipment field specifically is a contrary spray tube overflow weir waste fitting discharging of area recoil function.

Background

In the flue gas purification process of the smelting flue gas acid making device, a dynamic wave washing tower is one of core devices, a reverse spraying pipe is an important component of the dynamic wave washing tower, and the service life of the reverse spraying pipe and the stable production of a system are directly influenced by the operation condition of an overflow weir on the upper part of the reverse spraying pipe. Referring to fig. 2, the overflow weir 11 is generally supplied by the bypass of the circulating pump of the acid production purification process or by the clear liquid supplied by the solid-liquid separation equipment, so as to keep the dilute sulfuric acid solution in the weir to overflow on the inner wall of the back spray pipe 12 to form a continuous and uniform liquid film, thereby protecting the back spray pipe 12 from normal use, but it is often found in the production practice: the production of long period, high solid content dilute sulfuric acid solution acid mud subsides in the overflow weir 11, acid mud silts up in the weir, block up drain 10, the blow off pipe of former overflow weir 11 bottom is blockked up often, can not normally blowdown, lead to the fluctuation of dilute sulfuric acid solution liquid level in the weir big, the night membrane that forms at the internal wall of overhead shower is discontinuous, inhomogeneous after the overflow, can not fine play the effect of protection overhead shower 12, most enterprises must frequently utilize system's down time to trompil the overflow weir, the interior acid mud of manual work clearance weir, the cleaning strength is big and difficult clearance.

Disclosure of Invention

The utility model aims at providing a contrary spray tube overflow weir waste fitting discharging of area recoil function in order to solve when long period production, the easy problem that leads to not reaching ideal operating condition of drain hole in the overflow weir blocks up.

The utility model has the following concrete scheme: the utility model provides a contrary spray tube overflow weir waste fitting discharging of area recoil function, includes the connecting pipe of being connected with overflow weir drain, and tee bend A is equipped with to the connecting pipe outer end, and tee bend A one end is equipped with the blow off pipe, and the flushing pipe is equipped with to the other end, and tee bend B is equipped with to the flushing pipe outer end, and tee bend B one end is equipped with the inlet tube, and the other end is equipped with the intake pipe, the water source is connected on the inlet tube top, compressed air source is connected to intake pipe one end, solenoid valve A is equipped with on the blow off pipe, is equipped with solenoid valve B on the flushing pipe, is equipped with solenoid valve C on.

The water source is a high-level water tank, and the water level of the high-level water tank is higher than that of the sewage draining outlet.

The diameter of the flushing pipe of the utility model is larger than that of the sewage draining pipe.

The working principle of the utility model is as follows: during blowdown, firstly open solenoid valve A, solenoid valve B and C are in the closure state, make the overflow weir be in the blowdown state, and sewage in the overflow weir passes through the connecting pipe, the blow off pipe discharges, closes solenoid valve A through a period of time (about 30 seconds-60 seconds), opens solenoid valve B and C, makes the interior access water of wash pipe and compressed gas to in getting into the overflow weir from the connecting pipe, wash the overflow weir, wash a period of time (about 30 seconds) after close solenoid valve B and C, the overflow weir gets into normal operating condition.

Compared with the prior art, the utility model has the following advantages: through reforming transform the blowoff pipeline of contrary spray tube overflow weir, the new water that is mingled with the bubble that will take the pressure regularly reverse introduction overflow weir inslot, can prevent that acid sludge in weir groove and the blowoff pipe from piling up, causing the not smooth problem of blowdown, do benefit to that the weir inslot liquid level is stable and the blowoff pipeline is unblocked, have higher practicality and reliability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a prior art thrust reverser;

in the figure: 1-connecting pipe, 2-tee joint A, 3-flushing pipe, 4-electromagnetic valve B, 5-water inlet pipe, 6-air inlet pipe, 7-electromagnetic valve C, 8-electromagnetic valve A, 9-sewage discharge pipe, 10-sewage discharge outlet, 11-overflow weir, 12-reverse spray pipe, 13-tee joint B, 14-controller.

Detailed Description

Referring to fig. 1, the embodiment includes a connection pipe 1 connected to a sewage outlet 10 of an overflow weir 11, a tee joint a2 is installed at an outer end of the connection pipe 1, a sewage discharge pipe 9 is installed at one end of a tee joint a2, a flushing pipe 3 is installed at the other end of the tee joint A3, a tee joint B13 is installed at an outer end of the flushing pipe 3, a water inlet pipe 5 is installed at one end of a tee joint B13, an air inlet pipe 6 is installed at the other end of the tee joint B13, a water source is connected to a top end of the water inlet pipe 5, one end of the air inlet pipe 6 is connected to a compressed air source, a solenoid valve A8 is installed on the sewage discharge pipe 9, a solenoid valve B4 is installed on.

In this embodiment, the water source is a high-level water tank, the water level of the high-level water tank is higher than the water level of the sewage outlet 10, and clear water is supplied by a high-level accident tank of the acid making system.

The diameter of the flushing pipe 3 is larger than that of the sewage discharge pipe 9, so that the quantity of backwashing water is increased, the backwashing time is shortened, the flushing effect is enhanced, and meanwhile, the phenomenon that the liquid level in a weir fluctuates for a long time due to overlong flushing time is avoided.

Claims

1. The utility model provides a take contrary spray tube overflow weir waste fitting discharging of recoil function which characterized by: the device comprises a connecting pipe connected with a drain outlet of an overflow weir, wherein a tee joint A is arranged at the outer end of the connecting pipe, a drain pipe is arranged at one end of the tee joint A, a flushing pipe is arranged at the other end of the tee joint A, a tee joint B is arranged at the outer end of the flushing pipe, a water inlet pipe is arranged at one end of the tee joint B, an air inlet pipe is arranged at the other end of the tee joint A, a water source is connected to the top end of the water inlet pipe, a compressed air source is connected to one end of the air inlet pipe, a solenoid valve A is arranged on the drain pipe.

2. The inverted nozzle overflow weir blowdown device with the back flushing function as claimed in claim 1, wherein: the water source is a high-level water tank, and the water level of the high-level water tank is higher than that of the sewage outlet.

3. The inverted nozzle overflow weir blowdown device with the back flushing function as claimed in claim 1, wherein: the diameter of the flushing pipe is larger than that of the sewage discharge pipe.