CN2525271Y - Pneumatic plunger mortar grouting pump and mixing machine and automatic mortar mixing and grouting equipment - Google Patents

Abstract

The utility model relates to a pneumatic plunger mortar grouting pump and mixing machine and automatic mortar mixing and grouting equipment. A pneumatic plunger mortar grouting pump consists of a driving cylinder, a working fluid cylinder and a piston rod, which is characterized in that: a pressure reducing and regulating valve, a reversing electromagnetic valve and a stroke control switch are arranged on the driving cylinder; the reversing electromagnetic valve is communicated with a gas inlet of the driving cylinder through a gas inlet pipe; the ends of the working fluid cylinder are provided with an one-way mortar inlet valve and an one-way mortar outlet valve; the driving cylinder is connected with the working fluid cylinder through the piston rod; compressed gas enters into the driving cylinder through the pressure reducing and regulating valve and the reversing electromagnetic valve, and pushes the piston rod to drive a piston of the working fluid cylinder to do reciprocating motion; the utility model solves the problems that the prior mortar grouting equipment is high in energy consumption, great in waste, heavy in volume, complex in structure, fussy in pressure regulation and pulsatile in mortar pressure. Adjustable mixing machines and automatic mortar mixing and grouting equipment in any proportion can be composed by utilizing a plurality of pneumatic plunger mortar grouting pumps. The utility model is characterized in low energy consumption, light in weight, simple in pressure regulation, stable in output mortar pressure and capable of regulating mortar mixing proportion at random, which can be widely used for the automatic grouting in hydropower, coal, petroleum, traffic, urban construction and other fields, in particular for chemical grouting engineering.

Description

Pneumatic plunger type grouting pump and mortar mixing machine reach joins the slurry grouting equipment automatically

The utility model relates to that a kind of grouting works uses joins the slurry grouting equipment, particularly a kind of Pneumatic plunger type grouting pump and mortar mixing machine and joins the slurry grouting equipment automatically.

Grouting works, particularly chemical grouting engineering is a very complex engineering, the grouting initial stage needs big flow rate of grouting and less pressure, at this moment, needs grouting equipment that more high-power and less pressure is provided, the grouting later stage, need less flow rate of grouting and bigger pressure, at this moment, need grouting equipment that less power and bigger pressure are provided, and require flow rate of grouting and pressure adjustable continuously, avoid producing slurry and press pulsation phenomenon.Some chemical grouting slurry material is a multicomponent, needs therefore to require grouting equipment can carry out two-fluid process or many liquid method automatic grouting with joining with usefulness.

At present, the automatic grouting equipment that is widely used in fields such as water power, metallurgy, coal, oil, traffic, urban construction is divided into pneumatic-typed, gear pump type, screw type and plunger type four classes, and the plunger type grouting pump has electronic eccentric wheel to drive and two kinds of forms of hydraulic driving.Wherein the pneumatic-typed grouting pump adopts pressurized gas directly to drive grouting slurry material, belong to direct acting type, operating range is limited, slurry presses delivery pressure can only be equal to or less than supply gas pressure, and (maximum pressure is generally 0.6～1.0MPa), range of working pressure is limited, and existing gear pump type, though the grouting pump of screw type and plunger type several types can reach higher working pressure (can reach 20MPa), but decide power grouting owing to adopt, even the grouting amount hour, also need the more high-power high pressure of keeping, therefore exist energy loss big, equipment heating, fragile, complex structure, clean inconvenience, weight is big, pressure is regulated complicated, can not accurately control during low pressure, slurry is pressed shortcomings such as pulsation, and do not have special arbitrary proportion adjustable join slurry equipment, can't realize robotics grouting.

The purpose of this utility model is exactly the defective at the said goods, provides a kind of simple in structure, in light weight, and energy consumption is low, and pressure is adjustable continuously, and the output slurry is pressed stable, cleans Pneumatic plunger type grouting pump easy to maintenance, to remedy the deficiency of the said goods.

Another purpose of the present utility model, exactly at still do not have at present special arbitrary proportion adjustable join slurry equipment, a kind of pneumatic type plunger type mortar mixing machine is provided.

The utility model also has a purpose, just provide a kind of realize robotics grouting join the slurry grouting equipment automatically.

The technological scheme of Pneumatic plunger type grouting pump is achieved in that it forms by driving cylinder, operational hydraulic cylinder and piston, it is characterized in that: drive on the cylinder decompression pressure regulator valve is housed, reversing solenoid valve and travel control switch, reversing solenoid valve is connected with the suction port that drives cylinder by suction tude, unidirectional slurry-inlet valve and unidirectional slurry-supplying valve are equipped with in the operational hydraulic cylinder termination, driving cylinder is connected with operational hydraulic cylinder by piston rod, pressurized gas is through the decompression pressure regulator valve, enter the driving cylinder behind the reversing solenoid valve, promote the reciprocating motion of the pistons that piston rod drives operational hydraulic cylinder; The spiral cover sealing is adopted in the termination of operational hydraulic cylinder, unidirectionally advances grout outlet and links to each other with operational hydraulic cylinder by spiral cover.

The utility model drives the cylinder diameter ratio of cylinder and operational hydraulic cylinder by conversion, and regulates the decompression pressure regulator valve, realizes the expansion of fluid cylinder delivery pressure scope, adopts 0.1～1.0MPa to drive air pressure, can realize the accurate control of 0.01～20MPa scope internal pressure.Its working principle is as follows: the pressure regulation coefficient of establishing the decompression pressure regulator valve is α, and driving air pressure is P ₀, the driving cylinder bore is D, and the cylinder diameter of operational hydraulic cylinder is d, and the operational hydraulic cylinder delivery pressure is P, then $P={\mathrm{\α}\×P}_0\×{\left(\frac{D}{d}\right)}^2$

Promptly the cylinder diameter that drives cylinder and operational hydraulic cylinder by conversion is the size of can regulate output slurry pressure than the size of (D/d) and pressure regulation coefficient (α).

The Pneumatic plunger type grouting pump also can be realized by following more excellent technological scheme: promptly adopt twin-tub or multicylinder pump alternately to inhale slurry, mud jacking by replacing reciprocal control circuit (Fig. 7) control grouting pump, can avoid the single cylinder grouting pump in inhaling the slurry travel time, to export the falling that slurry is pressed like this, guarantee that the slurry pressure is stable.As Fig. 3, shown in Figure 7, with twin-tub Pneumatic plunger type grouting pump is example, position limit switch 22,23,25,24 is connected on respectively on the K switch 1 that replaces reciprocal control circuit, K2, K3, the K4, and selector valve 20,21 is connected on F1, F2 position respectively, controls by (Fig. 7) control circuit.

The technological scheme of Pneumatic plunger type mortar mixing machine is achieved in that it is that what of slurry component are basis join, select the synchronous operation of many Pneumatic plunger type grouting pumps for use, the grout outlet of each plunger type grouting pump all is connected with atomizer, and atomizer communicates with slurry storing tank by pipeline.As Fig. 4, shown in Figure 6, position limit switch 28,29,30,31 is connected on respectively on K switch A1, KA2, KB1, the KB2 of synchronous back and forth control circuit, selector valve 26,27 is controlled by (Fig. 6) control circuit respectively in FA, FB position.

The utility model is used in combination many air piston pumps, regulate the stroke of driving cylinder between each pump and the ratio of operational hydraulic cylinder cylinder diameter, adopt synchronously back and forth control circuit to drive that it is reciprocal synchronously, form the continuously adjustable Pneumatic plunger type mortar mixing machine of arbitrary proportion (1: 1～1: 30).Its structure characteristic is to be the adjustable driving cylinder of the stroke fluid cylinder that pushes the work forward; The operational hydraulic cylinder cylinder diameter of each pump, different according to component ratio; Control circuit drives the synchronous to-and-fro motion of each pump; Atomizing mixer evenly mixes each component; Driving cylinder stroke can not shut down in equipment running process and regulated.With two set of dispense pulp grinders is example, and the principle that its ratio is adjusted is as follows: establishing the corresponding plungers pump plunger stroke of A component is L _A, the diameter of operational hydraulic cylinder is d _A, it is Q that plunger pump once back and forth extrudes A component volume _AThe corresponding plungers pump plunger stroke of B component is L _B, the diameter of operational hydraulic cylinder is d _B, it is Q that plunger pump once back and forth extrudes B component volume _BReciprocal synchronously because of two plunger pumps of control circuit control, then A, B set of dispense slurry ratio are $\frac{\mathrm{QA}}{\mathrm{QB}}=\frac{\mathrm{\π}{(\mathrm{dA}/2)}^2\×\mathrm{LA}}{\mathrm{\π}{(\mathrm{dB}/2)}^2\×\mathrm{LB}}={\left(\frac{\mathrm{dA}}{\mathrm{dB}}\right)}^2\×\left(\frac{\mathrm{LA}}{\mathrm{LB}}\right)$

Promptly pass through the suitable operational hydraulic cylinder cylinder diameter of apolegamy than (dA/dB), and adjust plunger stroke and can accurately control A, B set of dispense slurry ratio than (LA/LB).

Automatically joining the technological scheme of starching grouting equipment realizes by the following technical solutions: it is to be composed in series by pneumatic type plunger type mortar mixing machine and Pneumatic plunger type grouting pump, and the pulp-inlet pipe of Pneumatic plunger type grouting pump directly is connected with the slurry storing tank of mortar mixing machine.

The beneficial effects of the utility model are as follows:

1, the utility model adopts pressurized gas to make driving force, need not motor, high pressure oil pump, fuel tank and apparatus cools device, and therefore simple in structure, in light weight, convenient in carrying, no oil pollution.And can be in continuous firing under the outage condition.

2, the utility model adopts air pressure to drive, and plant capacity consumption is calculated with the consumption of pressurized gas, and delivery pressure is high more, defeated slurry-outlet quantity is big more, then the pressurized gas consumption is big more, can adapt to the variation of the actual power of being in the milk on a large scale, and energy loss seldom, because the compressed energy-storage effect of gas, under the little filling amount of high pressure situation, pressurized gas consumption is few, can not cause the intensification of equipment, even the employing of pressurized gas also brings the effect of swell refrigeration, the cooling phenomenon of generation equipment in practical operation.The Pneumatic plunger type grouting equipment possesses advantage of low power consumption.

3, the plunger pump that adopts air pressure to drive, the pressure adjusting is simple to operate, the output slurry is pressed stable.

4, adopting pressurized gas is low voltage less than 36V as power source and control circuit, avoid high-power consuming parts such as motor, device security strengthens, and can adapt to job site, field humidity, the unwarranted execution conditions of power supply capacity such as water power, coal, oil.

5, change the grouting material and may pollute, corrode Sealing, it is separation structure that the Sealing on the piston needs often replacing, driving cylinder and operational hydraulic cylinder, and spiral cover design is adopted, the cleaning convenient disassembly in operational hydraulic cylinder turnover slurry termination.Even operational hydraulic cylinder damages, only need to change hydraulic cylinder part, maintenance cost is lower.

6, can carry out the grouting of two-fluid process or many liquid method, the ratio of each component of slurry material can be regulated in the mechanical movement process, promptly regulates under non-stop-machine situation.

7, composition is joined slurry-grouting equipment automatically, and whole system is accomplished closed-loop operation, can avoid starching the material moderate stimulation, and poisonous gas is detrimental to health.

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is a single cylinder Pneumatic plunger type grouting pump structural representation;

Fig. 2 assembles three kinds of typical case schematic representation of operational hydraulic cylinder of different cylinder diameters for same driving cylinder;

Fig. 3 is a twin-tub Pneumatic plunger type grouting pump structural representation;

Fig. 4 is two component Pneumatic plunger type mortar mixing machine structural representations;

Fig. 5 is the automatic reciprocating control circuit figure of single cylinder Pneumatic plunger type grouting pump;

Fig. 6 is the synchronously reciprocal control circuit figure of two component Pneumatic plunger type mortar mixing machines;

Fig. 7 replaces reciprocal control circuit figure for twin-tub Pneumatic plunger type grouting pump;

Fig. 8 is for joining slurry grouting equipment combination schematic representation automatically.

1, decompression pressure regulator valve 2, selector valve 3,4, position limit switch 5, magnet ring 6, seal ring 7, suction port 8, cylinder piston 9, piston rod 10, driving cylinder 11, suction port 12, liquid cylinder piston 13, operational hydraulic cylinder 14, spiral cover 15, unidirectional slurry-inlet valve 16, unidirectional slurry-supplying valve 17, slurry storing tank 18, atomizing mixer 19, slurry storing tank

The working procedure of Pneumatic plunger type grouting pump is such:

Pneumatic plunger type grouting pump driving source of the gas (0.1～1.0MPa pressurized gas or other gas) carries out pressure adjustment supply reversing solenoid valve 2 by decompression pressure regulator valve 1 as shown in Figure 1, reversing solenoid valve 2 is under the control of automatic reciprocating control circuit (Fig. 5), alternately, drive cylinder piston 8 automatic reciprocating motion under compressed gas-driven to driving two ventilating holes of cylinder, 7,11 air feed; Unidirectional slurry-inlet valve 15 and unidirectional slurry-supplying valve 16 are equipped with in operational hydraulic cylinder termination 14, the to-and-fro motion of operational hydraulic cylinder piston, cause operational hydraulic cylinder constantly produce from slurry storing tank 17 inhale slurry, to the cyclic process of grout pipe mud jacking; The Pneumatic plunger type grouting pump can assemble the operational hydraulic cylinder cylinder body and the piston of different-diameter, press if need provide than driving the higher slurry of bleed pressure, then should adopt than driving the littler operational hydraulic cylinder of cylinder bore, and cooperate the adjustment range of decompression pressure regulator valve 1, make its require slurry to depress can be accurately, stable; Press if need provide than driving the low slurry of bleed pressure, then at first utilize the decompression pressure regulator valve to regulate, if require voltage stabilized range to be lower than the stable operation range of decompression pressure regulator valve, then adopt than driving the bigger operational hydraulic cylinder of cylinder bore, cooperate the decompression pressure regulator valve to adjust again.To circuit supply, wherein JA, JB are relay to Fig. 5 circuit by low-voltage dc power supply, and JA1 is the normally-closed contact of JA, and JB1, JB2 are two groups of normally opened contacts of JB, and K1, K2 are position limit switch 3,4 corresponding among Fig. 1, and F is a selector valve 2 corresponding among Fig. 1.Selector valve 2 has two states: off-position and "on" position, and two kinds of situations of corresponding air feed path: off-position is to suction port 11 air feed, and suction port 7 communicates with atmosphere, and cylinder piston 8 is shifted to magnetic sensible switch 4 under air pressure drives, and switch 4 becomes closed state; If at this moment to Fig. 5 circuit supply, then JB adhesive, the last normally opened contact JB1 of JB, also adhesive thereupon of JB2, the "on" position of change selector valve F transfers to suction port 7 air feed, the state that suction port 11 communicates with atmosphere.Piston 8 moves to position limit switch 3 directions under air pressure drives, switch 4 because of piston 8 away from the state that becomes out again.And this moment, JA1, JB1 still were closed state, continued the power supply to JB, kept its attracting state, and JB2 also keeps attracting state, to selector valve 2 power supplies.Therefore piston 8 continues to move to switch 3, until arriving at switch 3 positions; Switch 3 is because the effect of piston 8 upper magnetic rings 5 transfers closed state to, and to the JA power supply, the JA adhesive causes that the last normally closed some JA1 of JA becomes out; Open circuit to the JB power supply, the JB clutch causes that the last normally closed some JA1 of JA becomes out; Open circuit to the JB power supply, the JB clutch causes that JB2 disconnects, and opens circuit to selector valve 2 power supplies, and then selector valve 2 transfers to suction port 11 air feed, the state that suction port 7 communicates with atmosphere.Piston also moves to switch 4 directions thereupon, until arrive at switch 4 finish once reciprocal, arrive at switch 4 after, cause that switch 4 states change, and begin newly once reciprocal.Therefore this circuit can be realized automatic reverse control.

More than narration is the working procedure of simplex pump, is to avoid the simplex pump falling that the output slurry is pressed in inhaling the slurry travel time, and available two or many simplex pumps are alternately inhaled slurry, mud jacking (Fig. 3) by replacing reciprocal control circuit (Fig. 7) control.JA, JB are relay among Fig. 7, and JA1 is the normally-closed contact of JA, and JB1, JB2 are the normally opened contact of JB, and K1, K2, K3, K4 are respectively position limit switch 22,23,25,24 corresponding among Fig. 3, and F1, F2 are respectively the selector valve 20,21 of two pumps.The working procedure that Fig. 7 replaces reciprocal control circuit is such: under disconnected state, the state of selector valve 20,21 is to make piston respectively near switch 22,25, when circuit supply, switch 22,25 is a closed state, then to JB power supply, JB adhesive, then JB1, JB2 closure, JB1 plays self-locking action, even disconnect the adhesive that still can keep JB this moment 22,25.The closure of JB2 changes selector valve 30,31 power supply states, and its air feed state changes, and promotes piston and moves to switch 23,24 respectively.When 23,24 become closed state simultaneously, the JA adhesive, cause opening circuit of its normally-closed contact JA1, cause the outage clutch of JB, the JB2 contact disconnects thereupon, selector valve 20,21 outages, the piston motion direction changes, move to switch 22,25 respectively, closed until 22,25 whiles, begin alternate reciprocating motion next time again.The characteristics of this circuit are that 22,25 series connection make the piston alternate reciprocating motion with position limit switch 23,24 series connection of the difference end of two pumps.

The working procedure of Pneumatic plunger type mortar mixing machine is as follows:

As Fig. 4, the Pneumatic plunger type mortar mixing machine is to be combined by many air piston pumps, and its number is by component number decision in the slurry material formula.With two components slurry material mortar mixing machine is example, is combined by two air piston pumps, and two pumps is inhaled slurry respectively from the slurry storing tank of two kinds of components, enter in the operational hydraulic cylinder by unidirectional slurry-inlet valve; Automatic reciprocating control circuit (Fig. 6) may command two pumps moves back and forth synchronously; The cylinder diameter of two operational hydraulic cylinders is selected according to the ratio between two components: if two component ratios are more or less the same, can adopt the operational hydraulic cylinder of identical cylinder diameter, only adjust the ratio of two components by the stroke of adjusting operational hydraulic cylinder; If two component ratios differ bigger, then should adopt different cylinder diameter (d _A/ d _B) operational hydraulic cylinder and cooperate the adjustment of stroke to carry out the accurate adjustment of two component ratios.The adjustment of every component operational hydraulic cylinder stroke is the position limit switch spacing (L that drives cylinder by adjusting _A, L _B) carry out, position limit switch 28,29,30,31 is a magnetic switch, is positioned to drive the cylinder block outside, its spacing can be adjusted in the air piston pump running easily.It is standby to enter slurry storing tank 19 after the slurry material that two pumps extrudes respectively mixes by atomizing mixer 18.JA, JB, JC, JD, JE are relay among synchronously reciprocal control circuit Fig. 6, JA1, JA2 are the normally opened contact of JA, JB1 is the normally-closed contact of JB, JC1 is the normally opened contact of JC, KA1, KA2, KB1, KB2 are position limit switch 28,29,30,31 corresponding among Fig. 4, and FA, FB are selector valve 26,27 corresponding among Fig. 4.The work of this circuit is such: not under the circuit supply situation, the state of selector valve 26 is that piston is promoted to switch 28 directions, and rests on the position of switch 28; Selector valve 27 is pushed piston to switch 30 positions, and then switch 28,30 is closed state under off-position.When to the power devices air feed, switch 28,30 closures are powered to JA, the JA closure, and its contact JA1, JA2 are also closed thereupon, and then JB1, JA1 closure are powered to JD, and JA2, JC1 closure are powered to JE, and JD, JE are then closed.While JD1, JE1, JD2, JE2 is also closed thereupon, JD2, the closure of JE2 causes two selector valves 26, the variation of 27 power supply states, two-piston is respectively to switch 29,31 move, 28,30 recover turnoff state again, the last JA1 of JA, JA2 two contacts disconnect again, but because JD1, the self-locking action of JE1 contact in circuit, JD, JE is adhesive still, keep JD2, the attracting state of JE2,26,27 still keep "on" position, piston continues to 29,31 move, arrive at switch 29 respectively until them, 31 positions, switch 39,31 closures, cause JB respectively, the JC closure, normally-closed contact JB1 then, JC1 disconnects respectively, cause JD, the variation of JE power supply state, cause JD2, JE2 opens circuit, then selector valve 26,27 outage commutations respectively, two-piston is again to switch 28,30 move, and all arrive at switch 28 until piston, 30 positions, switch 28,30 is closed simultaneously, power to JA, beginning moves in circles next time, because switch 28,30 serial fashion begins the to-and-fro motion each time of two pump pistons synchronously, and the reciprocal time of two pumps is consistent.

Automatically joining the working procedure of starching grouting equipment is the sum total of mortar mixing machine and grouting pump working procedure.

Claims (8)

1, a kind of Pneumatic plunger type grouting pump, it is formed by driving cylinder, operational hydraulic cylinder and piston rod, it is characterized in that: drive on the cylinder decompression pressure regulator valve is housed, reversing solenoid valve and travel control switch, selector valve is connected with the suction port that drives cylinder by suction tude, unidirectional slurry-inlet valve and unidirectional slurry-supplying valve are equipped with in the operational hydraulic cylinder termination, driving cylinder is connected with operational hydraulic cylinder by piston rod, pressurized gas enters the driving cylinder behind decompression pressure regulator valve, reversing solenoid valve, promote the reciprocating motion of the pistons that piston rod drives operational hydraulic cylinder.

2, Pneumatic plunger type grouting pump as claimed in claim 1 is characterized in that: the spiral cover sealing is adopted in the operational hydraulic cylinder termination.

3, Pneumatic plunger type grouting pump as claimed in claim 1 is characterized in that: driving power is pressurized air, nitrogen and the inert gas of 0.1～1.0MPa.

4, Pneumatic plunger type grouting pump as claimed in claim 1 is characterized in that: travel control switch is the magnetic induction travel control switch.

5, Pneumatic plunger type grouting pump as claimed in claim 1 is characterized in that: can adopt two or many simplex pumps, alternately inhale slurry, mud jacking by replacing reciprocal control circuit control grouting pump.

6, Pneumatic plunger type grouting pump as claimed in claim 5 is characterized in that: replacing reciprocal control circuit is that the position limit switch of two pumps or the different ends of many pumps is connected and the composition control circuit.

7, the mortar mixing machine formed of a kind of Pneumatic plunger type grouting pump, it is characterized in that: it is composed in parallel by many Pneumatic plunger type grouting pumps, adopt synchronously reciprocal control circuit that many Pneumatic plunger type grouting pumps are formed control circuit with the position limit switch series connection of end, control the synchronous operation of many Pneumatic plunger type grouting pumps, the grout outlet of each plunger type grouting pump all is connected with atomizer, and atomizer communicates with slurry storing tank by pipeline.

8, a kind of slurry grouting equipment of joining automatically, it is characterized in that: it is composed in series by mortar mixing machine and Pneumatic plunger type grouting pump, and the pulp-inlet pipe of Pneumatic plunger type grouting pump directly is connected with the slurry storing tank of mortar mixing machine.

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