JPS5842043Y2 - Spraying machine for refractory furnace materials, etc. - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a spraying machine for refractory furnace materials, etc.

Conventionally, when lining a refractory furnace using this type of spraying machine, a person who supplies raw materials, a person who opens and closes the valve, and a nozzle man are usually required, which has the disadvantage of poor work efficiency.

It would be sufficient for the person supplying the raw materials to increase the capacity of the stirring mixing tank, etc. and supply a large amount of raw materials at first, but the other two people were absolutely necessary.

This invention solves these problems and provides a spraying machine for refractory furnace materials, etc., which can be operated by a single nozzleman.

An embodiment of this invention will be described below with reference to the drawings.

In one embodiment of this invention shown in FIGS. 1 and 2, 1
0 is a storage tank which stores pre-mixed raw materials, pressurizes them and sends them out, and has a large capacity.

11 is a lid of this storage tank, 12 is a delivery impeller located at the bottom of the storage tank 10, 13 is an air motor for rotating this impeller, and 15 is a raw material that supplies compressed air to pressurize and blow out the raw material. A supply port for delivery air, 16 a raw material delivery port, 17 a water tank, 18 a pump driven by compressed air to deliver water from the water tank, 20 a hose connected to the delivery port 16, 21 23 is a nozzle, and 25 is a hose that sends water from the pump 18 to the nozzle 23.

As shown in detail in FIGS. 3 and 4, the speed increaser 22 directs the compressed air sent from the hose 26 to the outside of the raw material passage 27 through a number of passages 28 distributed so as to substantially surround it. Each flow path 28 opens at an annular end surface 30 which is a slightly expanded passage 27, and is inclined in a direction toward the tip toward each other, and rotated by a predetermined angle in a predetermined direction. It is open to the public.

Therefore, at a portion where the peripheral speed of the raw material passing through the hose 20 has decreased, it is possible to increase the speed by blowing air onto the material in a spiral manner to give it a spiral motion.

Referring again to Figures 1 and 2, 31 is a pipe connected to the factory's air piping or a compressor, etc., to send compressed air to the distribution pipe 32, and from this distribution pipe to the air motor via a hose. a pipe 33 that leads to the raw material delivery air supply port 15 via a hose, a pipe 3 that leads to the pump via a hose.
6 and a pipe 37 that connects to the hose 26 and leads to the speed increaser 22 is a branch.

Each of the pipes 33, 35, 36, 37 is provided with a solenoid valve 38, 40, 41, 42 that opens and closes each pipe, and a flow rate regulating valve 43,
45, 46, and 47 are set.

48 is a control panel configured as follows.

That is, to explain with reference to FIGS. 5, 6, and 1, 50 is a power terminal connected to, for example, a 100 V AC power source, and 51 is a white indicator light that indicates that the power is connected. .

Reference numeral 52 denotes a changeover switch, and when a contact 53 is closed, automatic operation is performed, and when a contact 54 is closed, manual operation is performed.

First, the case where the contact 53 of the changeover switch 52 is closed and automatic operation is performed will be described.

55 is a nozzle 2 so that it can be operated away from the storage tank 10.
3 is a pushbutton switch placed from the control panel 48 via a cable 56. When this is closed, a red indicator light 57 indicating automatic operation lights up and a relay coil 58 is energized to switch on the three normal Open contacts 58 al, 58 a 2, 5
8a3, and this relay coil is self-maintained by closing the contact 58a1.

By closing the contacts 58a2 and 58a3, the solenoid valve 4
0.42 is opened, and the compressed air that enters the storage tank 10 from the supply port 15 for raw material delivery air and the compressed air that has passed through the hose 20 and the compressed air that has passed through the hose 26 pass through the speed increaser 22 and are both passed through the hose 21. It passes through and is ejected from the nozzle 23.

Reference numeral 60 denotes a timer that closes the contact 60a when a set time such as about 3 seconds elapses when a current flows through it. Water is supplied through the nozzle 23 and is ejected from the nozzle 23.

Reference numeral 61 denotes a timer that closes the contact 61a when a set time such as 10 to 13 seconds has elapsed due to the current flowing through it. starts driving the impeller 12, and thereby the raw material is delivered.

That is, when automatic operation is performed, air for feeding raw materials and air for increasing speed are first jetted out, then water is jetted out, and then raw materials are jetted out, and the time intervals between these are adjusted by timers 60 and 61. It can be set as possible.

Reference numeral 65 denotes a push button switch disposed on the nozzle 23 and connected to the control panel 48 via the cable 56. When this is closed, the relay coil 66 is energized, and the normally open contact 66a is closed to activate this relay. The coil is self-retaining and has a normally closed contact 6.
6 b is opened, the solenoid valve 38 is deenergized, the air motor 13 is stopped, and the raw material is no longer delivered, and the timer 6
Since current flows to contact 6, after the set time of 7 to 10 seconds, contact 6
7b is opened, the relay coil 58 is deenergized, and the contact 58
a 1,58 a 2°58a3 is opened.

Therefore, the solenoid valves 40, 42 and 41 are deenergized, the supply of compressed air and water is completely stopped, and the initial state is restored.

When operating by manual operation, selector switch 52
When the switch is operated to the manual side to close the contact 54, the relay coil 68 is energized and the normally open contact 68a 1.68a
Since 2, 68 a 3, 68 a 4 are closed, by operating the switches 70, 71, 72, 73 respectively, the solenoid valves 40, 42, 41, 38 can be operated and manual operation can be performed. .

In the embodiment of this invention, three timers 60
．． 61.67, but instead of using three timers, for example, the timer 60.61 can be operated using one timer to operate two contacts. Other different configurations may also be used.

Furthermore, although the set times of the timers 60, 61, and 67 can be adjusted to suit the convenience of the operator, fixed set times may also be used.

Further, there are cases in which the speed increaser 22 is not used in this invention, and in such a case, there is no need for any hoses, solenoid valves, etc. for supplying air thereto.

Furthermore, in place of the water tank 17, the water supply within the factory may be used.

Further, an electric motor may be used instead of the air motor 13, or the pump 18 may be directly connected to the electric motor. In such a case, a relay may be used instead of a solenoid valve for opening and closing.

Further, the switches 55 and 65 may not be push button switches, but may be opened and closed by a single switch, or may be provided independently from the nozzle 23 so that the storage tank 10 can be remotely controlled.

As mentioned above, this invention is based on the nozzle 2 which is remote from the storage tank 10.
Automatic operation can be achieved by operating the switch at the position of the operator operating 3, which has the effect of allowing only one operator to spray the refractory furnace material.

It should be noted that this invention may be used for spraying work other than refractory furnace materials, such as when repairing concrete buildings in factories, and it goes without saying that the storage tank 10 may have the function of stirring and mixing raw materials. It is.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of this invention partially cut away or removed, Fig. 2 is a front view shown with the part removed or cut away, and Fig. 3 is an enlarged view. 4 is a sectional view taken along the line A-A in FIG. 3, FIG. 5 is a front view of the control panel, and FIG. 6 is a connection diagram.

Claims (1)

[Scope of utility model registration request] a storage tank containing raw materials; a supply port opened to supply compressed air for raw material delivery from a compressed air source into the storage tank;
an impeller arranged in the storage tank and driven by a drive device that rotates while being supplied with compressed air from the supply port and sends out the raw material from the delivery port, and is connected to the delivery port via a hose; A spraying machine for refractory furnace materials, etc., which has a nozzle and a hose connected to mix water supplied from a water supply source with the raw material passing near this nozzle, and gives signals to start and stop spraying. a switch device that can be remotely operated, a device for setting a time, a means for operating compressed air for raw material delivery to be jetted from a supply port into a storage tank in response to a signal to start spraying from the switch device, and a device for starting spraying. means that operates to supply water from the water supply source to the vicinity of the nozzle after a predetermined time has elapsed in a device for setting a time from a signal; and a device for setting the time from the start of water supply. and means for driving the drive device to rotate the impeller and blow out the raw material after a predetermined set time has elapsed; A spraying machine for refractory furnace material, etc., characterized in that the supply of the water and the compressed air for raw material delivery is stopped after a predetermined set time has elapsed in a time setting device.