CN2401522Y

CN2401522Y - Vertical water-isolated syrup conveyer

Info

Publication number: CN2401522Y
Application number: CN 00213072
Authority: CN
Inventors: 郑海亭
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-04
Filing date: 2000-01-04
Publication date: 2000-10-18
Anticipated expiration: 2010-01-04

Abstract

The utility model discloses a vertical water-isolated slurry conveyer belonging to a conveyer used in the industries of mine, electric force, coal, chemical, etc. for delivering tailings, clean ore, slurry and other materials with high-pressured water. The utility model is composed of a water pump 1, a water valve 2, a floating ball 3, an isolating tank 4, a feeder 5, a back valve 6, a slurry inlet pipe 7, a water storage casket 8, a slurry outlet pipe 9, a water inlet pipe 10, a return pipe 11, etc. The utility model is characterized in that the cross section of the feeder 5 is crateriform and the cross-sectional area of a thin part of the feeder 5 is two to fifteen times of the cross-sectional area of the slurry outlet pipe 9. The height difference between the outlet of the feeder 5 and the outlet of the return pipe 11 is four meters. The utility model can effectively prevent slurry from becoming muddled slurry caused by that air and floater enter an isolating tank to influence the normal operation of the water pump, back valve, the water valve, etc. The utility model has the advantage that the service life of the complete machine is prolonged.

Description

Vertical water is isolated the slurry conveyer

The utility model relates to a kind of conveyer of delivery pulp material, and a kind of vertical water of more specifically saying so is isolated the slurry conveyer.

The slurry conveyer is widely used in industries such as mine, ferrous and nonferrous metals, power plant, aluminium manufacturer, coal chemical industry, building materials.Be mainly used to carry media such as mine tailing, concentrate, mud, bauxite, Chi Kuang, mortar.Present slurry conveyer mainly exists and mixes that floating debris easily enters in the sealing chamber of conveyer in slurry and the slurry, and it is bigger to cause the water pump, water valve, non-return valve etc. of conveyer to wear and tear, and influences service life.Tracing it to its cause, mainly is that the feeder outlet of conveyer is bigger and the feeder structure is not too reasonable causes with the return water pipe outlet discrepancy in elevation.Also exist the fluctuation of coolant inlet pipe internal pressure bigger, cause the unstable and damageable deficiency of water pump hydraulic pressure.

Air, floating debris that main purpose of the present utility model provides in a kind of feeder do not enter sealing chamber along with slurry, do not occur mixing the slurry phenomenon in the sealing chamber, can effectively improve the complete machine vertical water isolation slurry conveyer in service life; Secondary objective is, a kind of water pump stable water pressure is provided, the water pump long service life, and cost is low, and the vertical water that energy consumption is little is isolated the slurry conveyer.

Main purpose of the present utility model reaches by the following technical programs.This vertical water is isolated the slurry conveyer, form by water pump 1, water valve 2, ball float 3, sealing chamber 4, feeder 5, non-return valve 6, pulp-inlet pipe 7, water storage container 8, grout outlet 9, coolant inlet pipe 10 and return water pipe 11, its special character is, the section of feeder 5 is a funnel-form, and the thin portion cross-sectional area of this feeder is 2-15 times of grout outlet 9 cross-sectional areas, and the discrepancy in elevation H between the outlet 5-1 of feeder 5 and the outlet 11-1 of return water pipe 11 is-4～4m.

The thin portion cross-sectional area of feeder 5 is 4-10 times of grout outlet 9 cross-sectional areas, and the discrepancy in elevation H between the outlet 5-1 of feeder 5 and the outlet 11-1 of return water pipe 11 is 0-3m.

Secondary objective of the present utility model reaches by the following technical programs.Promptly between water pump 1 and water valve 2, establish a buffer air jar 12 that links to each other with them.

Because it is funnel-form that feeder 5 of the present utility model is designed to section, the cross-sectional area of its thin portion is 2-15 a times of grout outlet, and the discrepancy in elevation H between its exit end and the return water pipe is-4～4 meters, make the flowing velocity of slurry in feeder slack-off, floating debris in gas and the slurry can not brought in the sealing chamber of this feed appliance by slurry, at first prevented existence because of gas in the slurry, the mixed slurry phenomenon that causes, and then influence the normal use of the normal operation and the water valve 2 of water pump, next has prevented that floating debris is arranged in the sealing chamber, produces the ball float card ball phenomenon in the sealing chamber.When after setting up a buffer air jar 12 between water pump 1 and the water valve 2, can effectively prevent to produce in the coolant inlet pipe meiobar, and then prevent to cause the interior water of pipe to reflux, hinder water pump 1 rotation or stall or counter-rotating, make water pump hydraulic pressure shakiness, have a strong impact on the water pump phenomenon in service life, make the enough centrifugal pumps of this conveyer energy as driving pump, have simple in structurely, cost is low, and low characteristics consume energy.

The explanation of accompanying drawing drawing

Fig. 1-structural principle scheme drawing of the present utility model

The structural principle scheme drawing of an embodiment of Fig. 2-the utility model

Provide embodiment of the present utility model below in conjunction with accompanying drawing, be used for further specifying technical solution.

Embodiment 1, with reference to figure 1.Connecting relation between water pump 1, coolant inlet pipe 10, water valve 2, ball float 3, sealing chamber 4, non-return valve 6, pulp-inlet pipe 7, grout outlet 9, feeder 5, return water pipe 11, the water storage container 8 as shown in Figure 1.Find out by Fig. 1, section is that the thin portion of bell-shaped feeder 5 is cylindric, the cross-sectional area of its thin portion is 6 times of grout outlet 9 cross-sectional areas, the discrepancy in elevation between the outlet 11-1 of its outlet 5-1 and return water pipe 11 is 3m, used water pump 1 is a centrifugal pump, and sealing chamber 4, ball float 3, water valve 2, non-return valve 6 are 3.Annexation between the other parts is same as the prior art.Principle of work is: successively open the left side sealing chamber, the backwater valve of the corresponding water valve 2 of intermediate isolating jar, close their flood valve, at this moment the slurry in the feeder 5 is at the slurry-inlet valve of successively opening in left side sealing chamber and the cooresponding non-return valve 6 of intermediate isolating jar through outlet 5-1 and pulp-inlet pipe 7 under the pressure differential effect, slurry successively enters left side sealing chamber and intermediate isolating jar, slurry promotes to move on the ball float 3, when the slurry in the sealing chamber of left side is filled, close the backwater valve of water valve 2, open the flood valve of water valve 2 simultaneously, the slurry-inlet valve SELF CL of non-return valve 6, the slurry-supplying valve self-opening, the high pressure water that water pump 1 produces is in coolant inlet pipe 10 enters the left side sealing chamber, promote ball float 3 and press down slurry, slurry is discharged through grout outlet 9.Because the cross-sectional area of feeder 5 thin portions is bigger, the slurry flowing velocity is slower, and then the air in slurry can be overflowed, floating debris can on move, prevented that slurry from bringing air and floating debris into sealing chamber and the mixed slurry phenomenon that causes with influence plasma discharge, advance slurry speed.Secondly, because the discrepancy in elevation between the outlet 5-1 of feeder 5 and the outlet 11-1 of return water pipe 11 only is 2 meters, difference of pressure is less, the potential energy of slurry is little, and the flowing velocity of the slurry that further slowed down makes slurry gas evolution in flow process more, and the slurry flow in feeder is less or when cutout, or liquid level can not bring air and floating debris into sealing chamber when dropping to the thin portion of feeder, prevents to mix the better effects if that slurry and floating debris enter sealing chamber.Prevented that so effectively mixed slurries from through return water pipe, entering water storage container 8, the phenomenon in water pump turns back to sealing chamber has prevented the wear-out failure effect of mixed slurry to water pump etc., makes complete machine be in good working order, and increase service life.Centre, right side sealing chamber advance, the process of plasma discharge is identical with above process.

Embodiment 2, with reference to figure 2.Find out that by Fig. 2 the structure that this vertical water is isolated the slurry conveyer is substantially the same manner as Example 1.Difference mainly contains 3 parts: a part is to have connected a buffer air jar 12 through a three-way pipe between water pump 1 and water valve 2.The structure of this buffer air jar can be existing air pressure jar, as air sac air holder, air bellow, metal or plastics formula air holder, also can design as required.Its basic structure is, it is positioned at the coolant inlet pipe of tank base by a tank body, is positioned at the exhaust gear at tank body top and can detects what pressure detection read out instrument of air, so that can be in time to air holder aerating or exhaust.Second portion is that the cross-sectional area of the thin portion of feeder is 10 times of grout outlet 9 cross-sectional areas; Third part is that the discrepancy in elevation H of the outlet 5-1 of feeder 5 and the outlet 11-1 of return water pipe 11 is 1m.Principle of work is: suppose that at first this conveyer is in a certain moment of normal operation, the slurry of a sealing chamber in left side is filled, is in the plasma discharge state for the treatment of, middle sealing chamber is in into pulpous state attitude, and the sealing chamber on right side is in the plasma discharge state.The advancing of water valve 2 on the sealing chamber of this moment left side, backwater valve all are in closed condition, and the flood valve of intermediate isolating jar water valve 2 is closed, and backwater valve is opened.The flood valve of right side sealing chamber water valve 2 is in open mode.Backwater valve is in closed condition, and the internal pressure of the buffer air jar 12 of contain air is identical with water pump 1.Now open the flood valve of left side sealing chamber water valve 2, in the moment that water valve 2 is opened, the hydraulic pressure in the coolant inlet pipe obtains suddenly discharging, and pressure reduces, and water velocity is accelerated; Because water pump drain water amount is certain, cause flow velocity certain, can not satisfy the demand of sealing chamber to water, the trend that forms meiobar is arranged in coolant inlet pipe, but at this moment the high pressure water in the buffer air jar 12 is just discharged rapidly, enter the left side sealing chamber through coolant inlet pipe 10, both satisfied the demand of sealing chamber to water, avoided the formation of meiobar in the coolant inlet pipe again, it is excessive to prevent that this conveyor system pressure from reducing, water in coolant inlet pipe refluence and back and forth the fluctuation (water is in the fluctuation back and forth of water pipe, be commonly called as water hammer), and then make pump operation speed slack-off, the generation of stall or reversal development has kept the normal of the normal operation of water pump and hydraulic pressure, prevented the water pump water wheels, rotating shaft, the damage of motor etc., prolonged service life, made water pump become possibility, greatly reduced cost and energy consumption with centrifugal water pump.Along with increasing of supplying water in the sealing chamber of left side, system pressure increases gradually, and the buffer air jar forwards to by water pump 1 to its moisturizing, until reaching the system pressure balance also by outside draining.When left side sealing chamber plasma discharge finishes, the flood valve of its water valve 2 is closed, in the moment that flood valve 2 is closed suddenly, the Shuitu of coolant inlet pipe so is subjected to big resistance, and water has refluence trend, and the buffer air jar has water to enter again, shunt part hydraulic pressure, eliminated or reduced the refluence of water.Left side sealing chamber water valve 2 backwater valves are opened, and the pressured difference of the slurry of feeder 5 is opened the slurry-inlet valve of non-return valve 6, and slurry pushes away ball float 3 on the slurries in pulp-inlet pipe 7 enters this sealing chamber, and ball float 3 makes waterborne moving through return water pipe 11 get back to water storage container 8.Centre, right side sealing chamber advance, the plasma discharge principle is same as described above.Three jars hocket into slurry, plasma discharge reach the purpose of continuous plasma discharge.The draining and the water inlet process of buffer air jar will repeat above process later on, and role is identical.In a word,, reduce or prevented the generation of water hammer, guaranteed the normal operation of water pump, prolonged service life, make vertical water isolate the slurry conveyer and can use centrifugal pump just because of the effect of buffer air jar.In addition, because the cross-sectional area of the thin portion of feeder is bigger than embodiment 1 than the cross-sectional area of grout outlet, the minimum discrepancy in elevation between feeder grout outlet and the return water pipe outlet is littler, so the slurry flowing velocity further slows down, make air and floating debris in the slurry more be difficult for entering sealing chamber, prevent mixed slurry phenomenon, guaranteed the normal operation of complete machine.

In like manner, can also provide the feeder cross-sectional area is grout outlet cross-sectional area 2-15 doubly (removing 6 times, 10 times), and the feeder outlet is the embodiment of-4～4m (removing 1m, 3m) with return water pipe outlet discrepancy in elevation H, and this all belongs to protection domain of the present utility model.

Claims

1. a vertical water is isolated the slurry conveyer, it is made up of water pump (1), water valve (2), ball float (3), sealing chamber (4), feeder (5), non-return valve (6), pulp-inlet pipe (7), water storage container (8), grout outlet (9), coolant inlet pipe (10) and return water pipe (11), it is characterized in that, the section of feeder (5) is a funnel-form, and the thin portion cross-sectional area of feeder is 2-15 times of grout outlet (9) cross-sectional area, and the discrepancy in elevation H between the outlet (5-1) of feeder (5) and the outlet (11-1) of return water pipe (11) is-4～4m.

2. vertical water according to claim 1 is isolated the slurry conveyer, it is characterized in that, the thin portion cross-sectional area of described feeder (5) is 4-10 a times of grout outlet (9) cross-sectional area, and the discrepancy in elevation H between the outlet (5-1) of feeder (5) and the outlet (11-1) of return water pipe (11) is 0-3m.

3. vertical water according to claim 1 and 2 is isolated the slurry conveyer, it is characterized in that, establishes a buffer air jar (12) that links to each other with them between water pump (1) and water valve (2).