CN2334873Y

CN2334873Y - Air adding device for liquid quick-solidifying agent

Info

Publication number: CN2334873Y
Application number: CN 98202364
Authority: CN
Inventors: 王昌清; 马明边; 靳光法
Original assignee: COAL SCIENTIFIC INST HEBI MINING AFFAIRS BEREAU
Current assignee: Hebi coal power Limited by Share Ltd
Priority date: 1998-03-20
Filing date: 1998-03-20
Publication date: 1999-08-25
Anticipated expiration: 2008-03-20

Abstract

The utility model relates to a product matched with a concrete spraying machine in coal mines, metallurgy, railways and other geotechnical engineering when a tunnel bolt-spray support is utilized. The utility model is used for properly adding setting accelerators in time when concrete is sprayed, and an air adding device for setting accelerators is composed of a central adding device of a pipe connected with a conveying pipe of the concrete spraying machine and an air pressing and supplying device connected with the central adding device. Compared with the adding method that the powdery accelerators are added by people without quantity, the air adding device for setting accelerators can be used for adding the setting accelerators scientifically and properly so as to ensure the later strength of concrete and the engineering quality of bolt spray, and simultaneously, the raw materials of the setting accelerators can be saved.

Description

A kind of liquid accelerator wind-force adding apparatus

The utility model relates to a kind of when adopting the tunnel bolt-spary supports in colliery, metallurgy, chemical industry, waterpower and railway tunnel isolith geotechnique journey and the supporting product of concrete sprayer, is mainly used in to add accelerating admixture timely and appropriately in sprayed mortar.

Concrete in the bolt-spary supports of tunnel sprays all to adopt and does the spray of spray formula tide at present, and simultaneously wherein with the powder accelerator admixture, but because that it has a dust is big, defective such as seriously polluted, inventor's design provides Chinese patent ZL96 241118.3---a kind of concrete wet shot unit, with the reduction dust, and the intensity of raising sprayed mortar etc.Use this pneumatic type wet shot machine obviously to be difficult to add powder accelerator, can be not desirable and add effect reluctantly yet, so the pneumatic type wet shot is more suitable for using liquid accelerator, yet the adding apparatus of this liquid accelerator still belongs to blank.

In order to address the above problem, the utility model provide a kind of can with the matching used accelerating admixture wind-force of concrete spraying machine adding apparatus, be particularly suitable for adding liquid accelerator.

Technical solution of the present utility model is as follows:

This being used for and the matching used liquid accelerator wind-force of wet concrete sprayer adding apparatus, comprise that the pipeline center that links to each other with the conveying pipeline of concrete sprayer adds device and passes through the wind-force force feed device that the liquid accelerator infusion tube is communicated with it.

Said pipeline center adds utensil expansion tube and the undergauge trunnion that sets gradually along the feedstock direction of conveying pipeline, the tube connector that two pipes link to each other with the spraying machine conveying pipeline; Be provided with a through hole on the hole enlargement tube wall, that establishes through hole in being fixedly connected with corresponding to the tube wall inboard of this position splits the stream piece; Be positioned at the aperture of splitting stream piece end face and connect nozzle; Be provided with metering gate and accelerating admixture infusion tube at the hole enlargement tube wall corresponding to the outside of through hole.

Said wind-force force feed utensil has the accelerating admixture storage tank, bottom at this storage tank is provided with strainer, valve is sent by wind, liquid change that conduit is communicated in outside the storage tank in corresponding storage tank top, and the position, two holes in addition of this valve connects the infusion tube of accelerating admixture and the bypass pipe that communicates with blast pipe respectively; Be provided with air inlet adjustment gate and pressure meter at blast pipe with the storage tank place of connection.

Add this device that device and wind-force force feed device are formed by above-mentioned pipeline center, the former utilizes the principle that the center flow velocity is the highest in the pipeline, pressure is minimum, and the same wind regime of available concrete sprayer is made a gift to someone liquid accelerator in the wind-force conveying pipeline of this concrete spraying (or do, tide spray) machine; The latter adopts the air draft voltage regulating method, can obtain comparatively stable required pressure, again by graduated metering gate regulating flow, realizes that quantitatively (adjustable) adds.

Artificial with powder accelerator, non-quantitative adding mode is compared, and this device can scientifically add accelerating admixture in right amount guaranteeing concrete later strength, and then guarantees the workmanship of anchor spray, also can save the accelerating admixture raw material simultaneously.

In addition, the pipeline center of this device adds any position that device can be connected conveying pipeline in the concrete sprayer, and can advance with this unit operation, so easy to use, effective.

The pipeline center that accompanying drawing 1 of the present utility model is this device adds the generalized section of device;

Fig. 2 is the A-A cut-away view among Fig. 1;

Fig. 3 defeats the structural representation that send device for this device apoplexy.

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

This device is made up of two parts, i.e. the pipeline center that links to each other with the conveying pipeline of spraying machine on the coagulation wind-force force feed device (referring to Fig. 3) that adds device (referring to Fig. 1) and be communicated with it by the liquid accelerator infusion tube.

Above-mentioned pipeline center adds device and can be arranged on the conveying pipeline 7 of any section concrete spraying machine.It comprises as shown in Figure 1 tube connector 20, undergauge trunnion 6 and expansion tube 1.Set gradually expansion tube 1 and undergauge trunnion 6, two pipes at feedstock direction and need pass through tube connector 20 with being connected of conveying pipeline 7 along conveying pipeline 7; And all join between each pipe with blocking blue 18 fast.Be provided with a through hole on expansion tube 1 wall, that establishes through hole in being fixedly connected with corresponding to the tube wall inboard of this position splits stream piece 2, the center line of this hole horizontal position should with the dead in line of expansion tube 1, and nozzle 3 is set in this bore ends.The through hole outside that is positioned on expansion tube 1 wall is provided with metering gate 4, and joins with infusion tube 5 from wind-force force feed device.Graduated metering gate be set be the conveying capacity when guaranteeing that concrete mix enters the center and adds device by conveying pipeline 5, so can quantitatively add liquid accelerator.Flow resistance when described shape of splitting stream piece 2 should be designed to reduce concrete sprayed as far as possible, therefore be circular-arc (seeing the label 2 among Fig. 1) along this vertical sectional shape of splitting stream piece 2 of feedstock direction of concrete sprayer conveying pipeline 7 in the present embodiment, its cross section then is an acute angle shape shown in Figure 2.

Add the strainer 9 that the wind-force force feed device (see figure 3) that device links to each other comprises accelerating admixture storage tank 8, is located at tank bottom by infusion tube 5 and above-mentioned pipeline center, is communicated with by conduit 17 with the corresponding storage tank of filters locations top and is arranged on storage tank wind, liquid change outward and send valve 15; This valve is the two-position three way structure, and its other two interfaces link to each other with an end of infusion tube 5 and bypass pipe 9 respectively; The other end of bypass pipe 19 connects blast pipe 11, and blast pipe 11 these ends also and also be provided with air inlet adjustment gate 12 and pressure meter 13 between storage tank 8 loam cakes 16 successively, can set up blast by this regulating gate 12 and pressure meter 13, guaranteeing the pressure stability in the liquid accelerator storage tank 8, and then the accelerating admixture of the infusion tube 5 that guarantees to flow through is sprayed continuously and stably.Above-mentioned wind, liquid become the setting of sending valve 15 can be made pressure wind become through bypass pipe 19 and wind, liquid along blast pipe 11 to send valve 15 directive nozzles 3, and nozzle 3 can not stopped up by mortar so structure has guaranteed whenever all can stop in the course of injection, liquor charging body accelerating admixture.In addition, for the ease of detecting and regulate the reserves and the pressure of accelerating admixture in the storage tank 8, this device also is provided with 3 as parts such as Liquid level scale 10 and air draft gates 14.

Claims

1, a kind of liquid accelerator wind-force adding apparatus is characterized in that, this device comprises that the pipeline center that links to each other with the conveying pipeline of concrete sprayer adds device and passes through the wind-force force feed device that the liquid accelerator infusion tube is communicated with it.

2, accelerating admixture wind-force adding apparatus as claimed in claim 1, it is characterized in that, said pipeline center adds utensil expansion tube (1) and the undergauge trunnion (6) that sets gradually along the feedstock direction of conveying pipeline (7), the tube connector (20) that two pipes link to each other with spraying machine conveying pipeline (7); Be provided with a through hole on expansion tube (1) wall, that establishes through hole in being fixedly connected with corresponding to the tube wall inboard of this position splits stream piece (2); Be positioned at the aperture of splitting stream piece end face and connect nozzle (3); Be provided with metering gate (4) and accelerating admixture infusion tube (5) at expansion tube (1) wall corresponding to the outside of through hole.

3, accelerating admixture wind-force adding apparatus as claimed in claim 1, it is characterized in that, said wind-force force feed utensil has accelerating admixture storage tank (8), strainer (9) is set in the bottom of this storage tank, corresponding storage tank top, send valve (15) by wind, liquid change that conduit (17) is communicated in outside the storage tank, the position, two holes in addition of this valve connects the infusion tube (5) of accelerating admixture and the bypass pipe (19) that communicates with blast pipe (11) respectively; Be provided with air inlet adjustment gate (12) and pressure meter (13) at blast pipe (11) with the storage tank place of connection.