A foam fire extinguishing agent production device and production method thereof

Abstract

The present invention relates to the field of foam fire extinguishing agent production, and specifically to a foam fire extinguishing agent production device and a production method thereof, comprising a premixing cylinder, a base plate, a feed bin, a cover plate, a feed pipe and a discharge port. The present invention solves the problem that traditional foam fire extinguishing agent production equipment is difficult to adjust the addition amount of production raw materials according to the actual preparation volume, and requires auxiliary control by staff or external monitoring equipment, which increases the occupation of production resources. It also solves the problem that it is difficult to increase the distribution area during the addition process of multiple production raw materials, reduces the contact and mixing degree between different types of production raw materials, solves the problem that it is difficult to adapt to the volume depth change when configuring foam fire extinguishing agents of different volumes, reduces the stirring and mixing degree of foam fire extinguishing agent mixed liquid at different levels or different regional positions, and reduces the production and preparation efficiency of foam fire extinguishing agents.

Description

Technical Field

[0001] The present invention relates to the field of foam fire extinguishing agent production, and in particular to a foam fire extinguishing agent production device and a production method thereof. Background Art

[0002] Foam fire extinguishing agents are effective fire extinguishers for flammable and combustible liquids. They primarily form a floating layer of condensed foam on the liquid surface, acting as a suffocating and cooling agent. Foam fire extinguishing agents are categorized into chemical foam, air foam, fluoroprotein foam, aqueous film-forming foam, and solvent-resistant foam, with a wide range of applications.

[0003] Foam fire extinguishing agents are water-miscible agents that extinguish fires by producing foam through mechanical action or chemical reaction. Foam fire extinguishing agents are generally composed of a foaming agent, a foam stabilizer, a viscosity reducer, an antifreeze agent, a solvent, a preservative, and water. They are primarily used to extinguish fires of non-water-soluble flammable liquids and general solids. Special foam fire extinguishing agents can also extinguish fires of water-soluble flammable liquids. The production of foam fire extinguishing agents requires the mixing of a variety of raw materials. Depending on the type of foam fire extinguishing agent and the required bottle volume, the required raw materials must be added according to the actual production process and the appropriate proportions must be controlled. However, during the process of adding raw materials to the production of foam fire extinguishing agents, the following problems often arise:

[0004] Traditional foam fire extinguishing agent production equipment is difficult to adjust the amount of raw materials added according to the actual preparation volume. It requires auxiliary control by staff or external monitoring equipment, which increases the occupation of production resources. It is difficult to increase the distribution area during the addition of multiple raw materials, reduces the degree of contact and mixing between different types of raw materials, and is even more difficult to adapt to the volume depth changes when configuring different volumes of foam fire extinguishing agents. It reduces the degree of stirring and mixing of the foam fire extinguishing agent mixture at different levels or different areas, and reduces the production and preparation efficiency of the foam fire extinguishing agent. Summary of the Invention

[0005] The present invention provides a foam fire extinguishing agent production device to solve the problem of low production efficiency of foam fire extinguishing agent.

[0006] The present invention adopts the following technical scheme: a foam fire extinguishing agent production device, including a premixing cylinder, a bottom plate, a feed bin, a cover plate, a feed pipe and a discharge port, the upper and lower ends of the premixing cylinder are both open structures, the bottom plate is detachably installed at the opening position of the lower end of the premixing cylinder, the lower end of the premixing cylinder is provided with a discharge port, the feed bin is detachably installed at the opening position of the upper end of the premixing cylinder, and the feed bin is communicated with the premixing cylinder, the upper end of the feed bin is detachably installed with a cover plate, the middle part of the cover plate is evenly installed with a feed pipe, and the feed pipe is communicated with the feed bin, the inner wall of the feed bin is evenly installed with a sticking ring along its circumference, a material receiving rack is installed on the sticking ring by rotating cooperation, and the middle part of the material receiving rack A mixing shaft is fixedly installed, and the lower end of the mixing shaft extends into the premixing cylinder. The lower end of the cover plate is fixedly installed with a mixing motor through a motor seat, and the output shaft of the mixing motor is connected to the upper end of the mixing shaft through a coupling; a plurality of rings are fixedly installed on the lower part of the mixing shaft, and connecting ropes are evenly installed on the outer wall of the ring along its circumference. The length of the connecting rope is greater than the linear spacing between two adjacent rings. The connecting ropes on two adjacent rings are staggered with an acute angle. Mixing balls are fixedly installed at the ends of the connecting ropes, and the mixing balls at the ends of the connecting ropes do not contact the inner wall of the premixing cylinder and the upper end surface of the bottom plate; the material receiving frame includes a rotating piece, a horizontal plate, a shifting shaft, a shifting block, and a material receiving frame. The pipe and the material receiving bin are provided with a rotating piece on the sticking ring by means of rotational cooperation, a horizontal plate is installed between the two sticking rings opposite to each other on the same diameter of the circumference of the feeding bin, a through-type slot is provided in the middle of the horizontal plate, and multiple groups of shift shafts are installed between the two sticking rings opposite to each other on the same diameter of the circumference of the feeding bin, the shift shafts pass through the horizontal plate and the axes of the shift shafts are perpendicular to the horizontal plate, each group of shift shafts are symmetrically provided with shift blocks by means of sliding cooperation, and the shift blocks are respectively located on both sides of the horizontal plate, a material receiving pipe is fixedly installed on the shift blocks, the axis of the material receiving pipe is parallel to the axis of the feeding pipe, and the material receiving pipe is connected to the feeding pipe, a material receiving bin is fixedly installed on the lower end of the material receiving pipe, and the material receiving bin is connected to the material receiving bin. The pipes are connected; a plurality of blocks are fixedly installed on the shift shaft of each group, and the blocks are symmetrically distributed on both sides of the cross plate, and the shift block is located between two adjacent blocks on the same side of the cross plate, and the shift block and the block are connected by a tension spring, and a staggered cylinder is installed in the middle groove of the cross plate by a hinged manner, and the staggered shaft is installed at both ends of the cross plate by a rotational fit, and a staggered rod is fixedly installed in the middle of the staggered shaft, the staggered rod is located in the middle groove of the cross plate and the staggered rod is located below the shift shaft, the staggered cylinder is installed obliquely and the output shaft of the staggered cylinder is hinged to one end of the staggered rod, and a shift rod is fixedly installed at the end of the shift block, the shift rod extends downward and the staggered rod is in sliding contact with the shift rod.

[0007] Preferably, exhaust holes are evenly provided in the middle of the feed pipe, a block is fixedly installed on the inner side of the feed pipe, the lower end of the block is installed with an inner tube by sliding fit, the upper end of the block is provided with a liquid inlet trough, the bottom of the liquid inlet trough and the upper end of the inner tube are symmetrically provided with connected liquid inlets, the outer wall of the lower end of the inner tube is fixedly sleeved with a clamping block, a feed spring is provided between the clamping block and the lower end of the feed pipe, a discharge shaft is evenly installed on the middle part of the cover plate by rotating fit, the discharge shaft corresponds to the feed pipe one-to-one and the axis of the discharge shaft is parallel to the axis of the feed pipe, a discharge ring is fixedly installed on the lower end of the discharge shaft, the lower end of the clamping block slides against the upper end surface of the discharge ring, the lower end of the cover plate is fixedly installed with a discharge motor through a motor seat, sprockets are installed on the output shaft of the discharge motor and the upper end of the discharge shaft, and a chain is commonly sleeved between the multiple sprockets.

[0008] Preferably, a convex ring is fixedly provided on the upper end of the discharge ring, one end of the convex ring is perpendicular to the upper end face of the discharge ring, and a transition arc surface with a gradually changing thickness is provided between the other end of the convex ring and the upper end face of the discharge ring. A ball is installed on the lower end of the clamping block by means of rotational cooperation, and the ball rests on the convex ring end face of the discharge ring.

[0009] Preferably, a sleeve is installed on the inner side of the receiving pipe by sliding fit, the axis of the sleeve is parallel to the axis of the inner pipe and the inner wall diameter of the sleeve is larger than the outer wall diameter of the inner pipe.

[0010] Preferably, a docking ring is fixedly mounted on the upper end of the inner wall of the sleeve, the upper end of the docking ring is a downwardly inclined inclined surface structure, and the sleeve, the docking ring and the inner tube are interconnected.

[0011] Preferably, the upper end port position height of the material receiving pipe is lower than the lower end surface position height of the discharge ring, the lower end port of the inner tube is flush with the lower end port of the feed pipe, the upper end port of the sleeve is flush with the upper end port of the material receiving pipe, and the distance between the lower end port of the inner tube and the upper end port of the sleeve is smaller than the thickness of the convex ring on the discharge ring.

[0012] Preferably, a plurality of liquid outlet pipes are fixedly installed at the lower end of the material receiving bin, and the liquid outlet pipes are all connected to the material receiving bin, a plurality of sealing strips are fixedly installed at the lower end of the sleeve, the upper end of the sealing strip is connected to the upper end of the material receiving bin through a spring piece, and sealing grooves are evenly opened at the lower end of the material receiving bin, and the sealing grooves are all located at the port position of the liquid outlet pipe, the lower end of the sealing strip is located above the port of the liquid outlet pipe and the lower end of the sealing strip is pressed against the sealing groove by a sliding fit.

[0013] In addition, the present invention also provides a method for producing a foam fire extinguishing agent production device, comprising the following steps:

[0014] S1. Operation inspection: First, the staff will prepare the raw materials for the production of foam fire extinguishing agent, connect the discharge pipes of each raw material storage tank with the feed pipes, and check the smoothness of the pipes;

[0015] S2. Proportional filling: The material receiving rack and the feeding pipe work together to deliver the production raw materials in a predetermined proportion to the pre-mixing cylinder;

[0016] S3, mixing preparation: start the mixing motor to run, and drive the mixing shaft to rotate through the mixing motor to mix and stir the various production raw materials filled in the premixing cylinder;

[0017] S4. Discharge and collection: After the foam fire extinguishing agent is prepared, open the discharge port at the bottom of the premixing cylinder to discharge the foam fire extinguishing agent from the premixing cylinder for the next step of transportation or bottling.

[0018] Beneficial effects

[0019] 1. The foam fire extinguishing agent production device and production method described in the present invention can intermittently convey the raw materials for the production of the foam fire extinguishing agent through a feed pipe and a receiving pipe with both ends butted together, which facilitates the adjustment and control of the preparation of foam fire extinguishing agents of different volumes and reduces resource usage. By controlling the rotation speed of the discharge ring, the filling time of the production raw materials into the receiving bin can be controlled. By setting different spans of the convex ring at the upper end of the discharge ring, a time difference can be generated when different types of production raw materials are filled into the receiving bin. By controlling the production raw material filling time, the volume of the production raw materials flowing into the receiving bin can be controlled, thereby achieving control over the ratio of the foam fire extinguishing agent to the production raw materials.

[0020] 2. The foam fire extinguishing agent production device and production method described in the present invention can increase the scattering area of ​​the production raw materials when they flow out through the intermittent reciprocating horizontal movement of the receiving bin during circumferential rotation, thereby improving the contact and mixing degree between different types of production raw materials and improving production preparation efficiency. The change in the path of the receiving bin during movement can also keep the production raw materials filled inside it in a continuous shaking state, reducing the probability of stratification or sedimentation.

[0021] 3. The foam fire extinguishing agent production device and production method described in the present invention can continuously stir the mixed liquid inside the premixing barrel through the rotation of the mixing ball. The mixing ball arranged at multiple stations can adapt to the depth changes when configuring foam fire extinguishing agents of different volumes. By controlling the speed change of the mixing motor, the centrifugal force of the mixing ball during rotation can be changed accordingly, thereby causing the mixing ball to synchronously swing towards and away from the mixing shaft during circumferential rotation. The multi-degree-of-freedom swing of the mixing ball can accelerate the degree of mixed contact of various production raw materials at different levels or different areas in the premixing barrel, thereby improving the production and preparation efficiency of the foam fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic top view of

[0025] Figure 3 For the present invention Figure 2 AA direction cross-sectional schematic diagram;

[0026] Figure 4 For the present invention Figure 2 BB direction cross-sectional schematic diagram;

[0027] Figure 5 For the present invention Figure 1 Schematic diagram of the bottom plate without bottom plate;

[0028] Figure 6 It is a schematic cross-sectional view of a partial three-dimensional structure of the present invention;

[0029] Figure 7 This is a schematic diagram of a first partial three-dimensional structure of the material receiving frame of the present invention;

[0030] Figure 8 This is a schematic diagram of a second partial three-dimensional structure of the material receiving rack of the present invention;

[0031] Figure 9 For the present invention Figure 8 An enlarged schematic diagram of point C;

[0032] Figure 10 It is a partial cross-sectional schematic diagram of the feed pipe of the present invention;

[0033] Figure 11 It is a partial cross-sectional schematic diagram of the material receiving pipe and the material receiving bin of the present invention;

[0034] In the figure: 1, premixing cylinder; 2, bottom plate; 3, feed bin; 4, cover plate; 5, feed pipe; 6, discharge port; 7, receiving rack; 8, mixing shaft; 9, mixing motor; 31, contact ring; 81, sleeve ring; 811, connecting rope; 812, mixing ball; 71, rotating plate; 72, horizontal plate; 73, shifting shaft; 74, shifting block; 75, receiving pipe; 76, receiving bin; 731, stopper; 732, tension spring; 721, offset cylinder; 722, offset shaft; 723, offset rod; 741, shift rod; 51, block; 52, inner tube; 511, liquid inlet tank; 512, liquid inlet; 521, block; 520, feed spring; 41, discharge shaft; 411, discharge ring; 42, discharge motor; 43, sprocket; 431, chain; 522, ball bearing; 751, sleeve; 752, docking ring; 761, liquid outlet pipe; 753, sealing strip; 754, shrapnel. DETAILED DESCRIPTION

[0035] To facilitate understanding of the technical means, creative features, objectives, and effects of the present invention, the present invention is further described below in conjunction with specific embodiments. In this process, the width of lines or the size of components in the illustrations may be exaggerated to ensure clarity and convenience.

[0036] In addition, the terms used below are defined based on the functions of the present invention and may vary depending on the intentions or practices of users or operators. Therefore, these terms are defined based on the entire content of this specification.

[0037] An embodiment of the present invention is shown in FIG. Figures 1 to 4 A foam fire extinguishing agent production device includes a premixing cylinder 1, a bottom plate 2, a feed bin 3, a cover plate 4, a feed pipe 5 and a discharge port 6. The upper and lower ends of the premixing cylinder 1 are both open structures. The bottom plate 2 is detachably installed at the lower opening position of the premixing cylinder 1. The lower end of the premixing cylinder 1 is provided with a discharge port 6. The feed bin 3 is detachably installed at the upper opening position of the premixing cylinder 1, and the feed bin 3 is connected to the premixing cylinder 1. The upper end of the feed bin 3 is detachably installed with a cover plate 4. A feeding pipe 5 is evenly installed in the middle of the plate 4, and the feeding pipe 5 is connected to the feeding bin 3. The inner wall of the feeding bin 3 is evenly installed with a sticking ring 31 along its circumference. A material receiving rack 7 is installed on the sticking ring 31 by rotational cooperation. A mixing shaft 8 is fixedly installed in the middle of the material receiving rack 7. The lower end of the mixing shaft 8 extends into the premixing barrel 1. A mixing motor 9 is fixedly installed at the lower end of the cover plate 4 through a motor seat, and the output shaft of the mixing motor 9 is connected to the upper end of the mixing shaft 8 through a coupling.

[0038] As an embodiment of the present invention, Figure 4 、 Figure 5 、 Figure 7 and Figure 8As shown, the material receiving frame 7 includes a rotating piece 71, a horizontal plate 72, a shift shaft 73, a shift block 74, a material receiving pipe 75 and a material receiving bin 76. The rotating piece 71 is installed on the sticking ring 31 by rotating cooperation. The horizontal plate 72 is installed between the two sticking rings 31 opposite to each other on the same diameter of the circumference of the feeding bin 3. The mixing shaft 8 passes through the horizontal plate 72. A through-type notch is provided in the middle of the horizontal plate 72. It is located between the two sticking rings 31 opposite to each other on the same diameter of the circumference of the feeding bin 3. There are multiple groups of shift shafts 73 installed together, the shift shaft 73 passes through the horizontal plate 72 and the axis of the shift shaft 73 is perpendicular to the horizontal plate 72. Each group of shift shafts 73 is symmetrically installed with a shift block 74 by sliding fit, and the shift blocks 74 are respectively located on both sides of the horizontal plate 72. A material receiving pipe 75 is fixedly installed on the shift block 74. The axis of the material receiving pipe 75 is parallel to the axis of the feed pipe 5, and the material receiving pipe 75 is connected to the feed pipe 5. The lower end of the material receiving pipe 75 is fixedly installed with a material receiving pipe. The material receiving bin 76 is connected to the material receiving pipe 75. A plurality of stoppers 731 are fixedly installed on each set of shift shafts 73. The stoppers 731 are symmetrically distributed on both sides of the transverse plate 72, and the shift block 74 is located between the two adjacent stoppers 731 on the same side of the transverse plate 72. The shift block 74 and the stopper 731 are connected by a tension spring 732. The middle notch of the transverse plate 72 is hingedly installed with a staggered cylinder 721. Both ends of the transverse plate 72 are rotated to cooperate with each other. The shift block 74 is provided with a shifting rod 741 fixedly mounted on its end, the shifting rod 741 extending downward and the shifting rod 723 is in sliding contact with the shifting rod 741.

[0039] During the specific work, the staff first prepares the raw materials for the production of foam fire extinguishing agent, and connects the discharge pipelines of each raw material storage tank with the feed pipe 5 respectively. Then, the offset cylinder 721 is in the initial position. At this time, the offset rod 723 does not contact the output shaft of the offset cylinder 721, the offset rod 723 is located in the middle groove of the cross plate 72, and the offset rod 723 and the cross plate 72 are in a parallel placement state. At this time, the shift block 74 also does not contact the offset rod 723. The shift block 74 is in a position close to the middle of the feed bin 3 under the tension of the tension spring 732, and the multiple shift blocks 74 on the same side of the cross plate 72 are arranged in a straight line. At this time, the material receiving pipe 75 is located below the feed pipe 5, and the axis of the material receiving pipe 75 coincides with the axis of the feed pipe 5. Then, the production raw materials in the raw material storage tank are pumped into the feed pipe 5 through the existing pumping equipment.

[0040] As an embodiment of the present invention, Figure 3 、 Figure 4 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, the middle part of the feed pipe 5 is evenly provided with exhaust holes, the inner side of the feed pipe 5 is fixedly installed with a block 51, the lower end of the block 51 is installed with an inner tube 52 by sliding fit, the upper end of the block 51 is provided with a liquid inlet groove 511, the bottom of the liquid inlet groove 511 and the upper end of the inner tube 52 are symmetrically provided with a connected liquid inlet 512, the outer wall of the lower end of the inner tube 52 is fixedly sleeved with a clamping block 521, and a feed spring 520 is provided between the clamping block 521 and the lower end of the feed pipe 5, and the middle part of the cover plate 4 is evenly installed with a discharge shaft 41 by rotating fit, the discharge shaft 41 corresponds to the feed pipe 5 one by one, and the axis of the discharge shaft 41 is parallel to the axis of the feed pipe 5. The lower end of the discharge shaft 41 is fixedly installed with a discharge ring 411, and the lower end of the clamping block 521 slides against the upper end surface of the discharge ring 411. The lower end of the cover plate 4 is fixedly installed with a discharge motor 42 through a motor seat. The output shaft of the discharge motor 42 and the upper end of the discharge shaft 41 are both installed with a sprocket 43, and a chain 431 is commonly sleeved between the multiple sprockets 43. A convex ring is fixedly provided on the upper end of the discharge ring 411, and one end of the convex ring is perpendicular to the upper end surface of the discharge ring 411. A transition arc surface with a gradually changing thickness is provided between the other end of the convex ring and the upper end surface of the discharge ring 411. The lower end of the clamping block 521 is installed with a ball 522 by a rotational fit, and the ball 522 The cam 751 of the sleeve 75 is fixed on the top of the feeding tube 75, and the cam 752 of the sleeve 75 is fixed on the top of the feeding tube 5. The upper end of the connecting ring 752 is a downwardly inclined inclined structure. The sleeve 751, the docking ring 752 and the inner tube 52 are interconnected. A plurality of liquid outlet pipes 761 are fixedly installed at the lower end of the material receiving bin 76, and the liquid outlet pipes 761 are all connected to the material receiving bin 76. A plurality of sealing strips 753 are fixedly installed at the lower end of the sleeve 751. The upper end of the sealing strip 753 is connected to the upper end of the material receiving bin 76 through a spring piece 754. The lower end of the material receiving bin 76 is evenly provided with sealing grooves, which are all located at the port position of the liquid outlet pipe 761. The lower end of the sealing strip 753 is located above the port of the liquid outlet pipe 761 and the lower end of the sealing strip 753 is pressed against the sealing groove by a sliding fit.

[0041] When the material is in the liquid state, the feed pipe 5 is in a closed state at the bottom.

[0042] The sprocket 43 connected to the output shaft of the feeding motor 42 is driven to rotate, and the transmission action of the chain 431 further drives the other multiple sprockets 43 to rotate synchronously, and the feeding shaft 41 is driven to rotate synchronously by the sprocket 43, and the feeding ring 411 is driven to rotate by the feeding shaft 41. At this time, the convex ring set at the upper end of the feeding ring 411 follows the feeding ring 411 to rotate, and the ball 522 set at the lower end of the clamping block 521 abuts against the upper end surface of the convex ring and rolls. Due to the different proportions of raw materials required to be added, by setting convex rings with different head and tail spans, the contact time between the ball 522 and the convex ring can be controlled during the rotation of the feeding ring 411. When the ball 522 rolls to the vertical end of the convex ring, the ball 522 at the bottom of the clamping block 521 is pushed by the elastic force of the feeding spring 520, and the ball 522 at the bottom of the clamping block 521 is pressed against the convex ring. The inner tube 52 is quickly disengaged from the contact and finally abuts against the upper end surface of the discharge ring 411. At the same time, the block 521 is synchronously moved closer to the upper end surface of the discharge ring 411, and under the pulling action of the block 521, the lower end of the inner tube 52 extends outward from the feed pipe 5 and enters the upper end port of the sleeve 751. The provided docking ring 752 can abut against the lower end port of the inner tube 52. Subsequently, under the abutment and downward pushing action of the inner tube 52, the sleeve 751 and the inner tube 52 move downward synchronously. At this time, the lower end of the sleeve 751 extends toward the inner side of the material receiving bin 76. The downward movement of the sleeve 751 pushes the sealing strip 753 to move toward the lower end of the sealing groove. While the spring piece 754 is deformed, the downward movement of the sealing strip 753 blocks the liquid inlet end of the liquid outlet pipe 761. At this time, during the docking between the inner tube 52 and the sleeve 751, the lower end of the material receiving bin 76 is always in a closed state.

[0043] The hopper 52 is then fed into the hopper 52 and the hopper 53 is fed into the hopper 52. The hopper 52 is fed into the hopper 52 and the hopper 53 is fed into the hopper 52. The hopper 52 is fed into the hopper 52 and the hopper 53 is fed into the hopper 52. When the clamping block 521 is at the predetermined position at the upper end of the convex ring, the operation of the discharge motor 42 is stopped, and the inner tube 52 and the sleeve 751 are both reset.

[0044] As an embodiment of the present invention, Figures 3 to 6 As shown, a plurality of collars 81 are fixedly installed on the lower part of the mixing shaft 8, and connecting ropes 811 are evenly installed on the outer wall of the collar 81 along its circumference. The length of the connecting rope 811 is greater than the linear distance between two adjacent collars 81, and the connecting ropes 811 on two adjacent collars 81 are staggered with an acute angle. Mixing balls 812 are fixedly installed at the ends of the connecting ropes 811, and the mixing balls 812 located at the ends of the connecting ropes 811 do not contact the inner wall of the premixing cylinder 1 and the upper end surface of the bottom plate 2.

[0045] During specific operation, after the production raw materials flow out from the liquid outlet pipe 761, the offset cylinder 721 is started to work intermittently, so that the output shaft of the offset cylinder 721 is intermittently telescopic and moved. In the process of extending the output shaft of the offset cylinder 721, the offset rod 723 and the offset shaft 722 are rotated synchronously through the hinge action. In the process of rotation of the offset rod 723, its outer wall abuts against the side wall of the shift rod 741. Then, in the further rotation of the offset rod 723, the shift rod 741 is pushed by the offset rod 723, and gradually drives the shift block 74 to slide on the shift shaft 73, and drives the material receiving pipe 75 and the material receiving bin 76 to move horizontally as a whole through the shift block 74. In this process, the elastic pulling action of the tension spring 732 can make the shift rod 741 tightly abut against the side wall of the shift rod 741. On the side wall of the dislocation rod 723, along with the rotation of the dislocation rod 723, the shift blocks 74 at different distances from the shift shaft 73 produce different displacements, thereby causing the material receiving pipe 75 and the material receiving bin 76 at different positions to produce different displacement distances. When the dislocation cylinder 721 resets, the pulling of the tension spring 732 can make the material receiving pipe 75 and the material receiving bin 76 reset and move. During the linear movement of the material receiving bin 76, the production raw materials are in a state of outflowing in the liquid outlet pipe 761. The horizontal movement of the material receiving bin 76 can increase the spillage area of ​​the production raw materials when they flow out, thereby improving the contact degree between different types of production raw materials. The reciprocating movement of the material receiving bin 76 can also keep the production raw materials filled therein in a continuous shaking state, reducing the probability of stratification or sedimentation.

[0046] During the reciprocating movement of the receiving bin 76, the mixing motor 9 is started to operate, the mixing motor 9 drives the mixing shaft 8 to rotate, the mixing shaft 8 drives the cross plate 72 to rotate, and the cross plate 72 drives the rotating piece 71 to rotate on the ring 31, so that the receiving bin 76 rotates circumferentially around the axis of the mixing shaft 8. At this time, the linear reciprocating movement of the receiving bin 76 further increases the scattering area of ​​the production raw materials and the degree of mixing between different types of production raw materials, thereby improving the production preparation efficiency. Along with the rotation of the mixing shaft 8, the mixing ball 812 generates centrifugal force and rotates under the traction of the connecting rope 811. The rotation of the mixing ball 812 can perform secondary stirring on the mixed liquid inside the premixing cylinder 1, and the mixing ball 812 is rotated. The provided mixing ball 812 can adapt to the depth changes when different volumes of foam fire extinguishing agents are configured. By controlling the speed change of the mixing motor 9, the centrifugal force of the mixing ball 812 during rotation can be changed accordingly, thereby causing the mixing ball 812 to swing closer to and farther from the mixing shaft 8 during circumferential rotation. As the position height of the mixing ball 812 changes during swinging, the mixing contact efficiency of various production raw materials at different levels or different regional positions can be accelerated, further improving the production and preparation efficiency of the foam fire extinguishing agent. After the preparation is completed, the rotation of the mixing motor 9 is stopped, and the horizontal plate 72 is placed in the initial position. Subsequently, the discharge port 6 at the bottom of the premixing cylinder 1 is opened to discharge the foam fire extinguishing agent out of the premixing cylinder 1 for the next step of transportation or bottling.

[0047] In addition, the present invention also provides a method for producing a foam fire extinguishing agent production device, comprising the following steps:

[0048] S1. Operation inspection: First, the staff prepares the raw materials for the production of foam fire extinguishing agent and connects the discharge pipelines of each raw material storage tank with the feed pipe 5 respectively. Then, the offset cylinder 721 is placed in the initial position. At this time, the material receiving pipe 75 is located below the feed pipe 5, and the axis of the material receiving pipe 75 coincides with the axis of the feed pipe 5. Then, the production raw materials in the raw material storage tank are pumped into the feed pipe 5 through the existing pumping equipment.

[0049] S2. Proportional filling: At the initial position, the appropriate head-to-tail span of the convex ring on the discharge ring 411 is adjusted according to the addition ratio of each production raw material. Then, when the foam fire extinguishing agent needs to be prepared, the discharge motor 42 is started to rotate, and the discharge shaft 41 is driven to rotate synchronously through the sprocket 43 and the chain 431. The discharge ring 411 is driven to rotate through the discharge shaft 41, and the ball 522 set at the lower end of the block 521 is pressed against the upper end surface of the convex ring and rolls. When the ball 522 rolls to the vertical end of the convex ring, the ball 522 at the bottom of the block 521 is quickly disengaged from the convex ring under the elastic force of the feed spring 520, and finally When the bottle is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state. When the bottle 52 is in the liquid state, the bottle 52 is in the liquid state, and the bottle 52 is in the liquid state.

[0050] S3. Mixing preparation: After the production raw materials flow out from the liquid outlet pipe 761, the dislocation cylinder 721 is started to work intermittently, so that the output shaft of the dislocation cylinder 721 is intermittently telescopically moved. During the extension of the output shaft of the dislocation cylinder 721, the dislocation rod 723 and the dislocation shaft 722 are rotated synchronously by the hinge action. During the rotation of the dislocation rod 723, its outer wall abuts against the side wall of the shift rod 741. Subsequently, during the further rotation of the dislocation rod 723, the shift rod 741 is pushed by the dislocation rod 723, gradually driving the shift block 74 to slide on the shift shaft 73, and driving the receiving pipe 75 and the receiving bin 76 to move horizontally as a whole through the shift block 74. During this process, the production raw materials are in a state of flowing out of the liquid outlet pipe 761.

[0051] Subsequently, the mixing motor 9 is started to operate, and the mixing shaft 8 is driven to rotate by the mixing motor 9, and the cross plate 72 is driven to rotate by the mixing shaft 8, and the rotating piece 71 is driven to rotate on the ring 31 by the cross plate 72, so that the receiving bin 76 rotates circumferentially around the axis of the mixing shaft 8. Along with the rotation of the mixing shaft 8, the mixing ball 812 generates centrifugal force and rotates under the traction of the connecting rope 811. The rotation of the mixing ball 812 can perform secondary stirring on the mixed liquid inside the premixing cylinder 1.

[0052] S4. Discharge and collection: After the foam fire extinguishing agent is prepared, the discharge port 6 at the bottom of the premixing cylinder 1 is opened to discharge the foam fire extinguishing agent from the premixing cylinder for the next step of transportation or bottling.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foam fire extinguishing agent production device, comprising a premixing cylinder (1), a base plate (2), a feed bin (3), a cover plate (4), a feed pipe (5) and a discharge port (6), wherein both upper and lower ends of the premixing cylinder (1) are open structures, the base plate (2) is detachably mounted at the lower opening position of the premixing cylinder (1), the discharge port (6) is provided at the lower end of the premixing cylinder (1), the feed bin (3) is detachably mounted at the upper opening position of the premixing cylinder (1), and the feed bin (3) is communicated with the premixing cylinder (1), the upper end of the feed bin (3) is detachably mounted with a cover plate (4), the middle part of the cover plate (4) is evenly mounted with a feed pipe (5), and the feed pipe (5) is communicated with the feed bin (3), characterized in that: The inner wall of the feed bin (3) is evenly mounted with a contact ring (31) along its circumference, a material receiving frame (7) is mounted on the contact ring (31) in a rotationally matched manner, a mixing shaft (8) is fixedly mounted in the middle of the material receiving frame (7), the lower end of the mixing shaft (8) extends into the premixing cylinder (1), a mixing motor (9) is fixedly mounted on the lower end of the cover plate (4) via a motor base, and an output shaft of the mixing motor (9) is connected to the upper end of the mixing shaft (8) via a coupling; A plurality of collars (81) are fixedly mounted on the lower portion of the mixing shaft (8), and connecting ropes (811) are evenly mounted on the outer wall of the collar (81) along its circumference. The length of the connecting rope (811) is greater than the linear distance between two adjacent collars (81), and the connecting ropes (811) on two adjacent collars (81) are staggered with an acute angle. Mixing balls (812) are fixedly mounted at the ends of the connecting ropes (811), and the mixing balls (812) located at the ends of the connecting ropes (811) do not contact the inner wall of the premixing cylinder (1) or the upper end surface of the bottom plate (2); The middle part of the feed pipe (5) is evenly provided with exhaust holes, the inner side of the feed pipe (5) is fixedly installed with a block (51), the lower end of the block (51) is installed with an inner tube (52) by sliding fit, the upper end of the block (51) is provided with a liquid inlet groove (511), the bottom of the liquid inlet groove (511) and the upper end of the inner tube (52) are symmetrically provided with a connected liquid inlet (512), the outer wall of the lower end of the inner tube (52) is fixedly sleeved with a clamping block (521), a feed spring (520) is provided between the clamping block (521) and the lower end of the feed pipe (5), and the middle part of the cover plate (4) is connected to the inner tube (52). A discharge shaft (41) is evenly installed in a rotational matching manner, the discharge shaft (41) corresponds to the feed pipe (5) one by one, and the axis of the discharge shaft (41) is parallel to the axis of the feed pipe (5), a discharge ring (411) is fixedly installed at the lower end of the discharge shaft (41), the lower end of the clamping block (521) slides against the upper end surface of the discharge ring (411), the lower end of the cover plate (4) is fixedly installed with a discharge motor (42) through a motor seat, the output shaft of the discharge motor (42) and the upper end of the discharge shaft (41) are both installed with a sprocket (43), and a chain (431) is commonly sleeved between the multiple sprockets (43); A convex ring is fixedly provided on the upper end of the discharge ring (411), one end of the convex ring is perpendicular to the upper end surface of the discharge ring (411), and a transition arc surface with a gradually changing thickness is provided between the other end of the convex ring and the upper end surface of the discharge ring (411). A ball (522) is installed on the lower end of the clamping block (521) in a rotating fit manner, and the ball (522) abuts against the convex ring end surface of the discharge ring (411); The receiving rack (7) includes a receiving pipe (75) connected to the feed pipe (5), and a sleeve (751) is installed on the inner side of the receiving pipe (75) by sliding fit. The axis of the sleeve (751) is parallel to the axis of the inner pipe (52), and the inner wall diameter of the sleeve (751) is larger than the outer wall diameter of the inner pipe (52).

2. A foam fire extinguishing agent production device according to claim 1, characterized in that: The receiving frame (7) further comprises a rotating piece (71), a transverse plate (72), a shifting shaft (73), a shifting block (74) and a receiving bin (76). The rotating piece (71) is mounted on the contact ring (31) by means of rotational cooperation. A transverse plate (72) is mounted between two contact rings (31) opposite to each other on the same diameter of the circumference of the feeding bin (3). A through-type notch is arranged in the middle of the transverse plate (72). A plurality of shifting shafts (73) are mounted between two contact rings (31) opposite to each other on the same diameter of the circumference of the feeding bin (3). ), the shift shaft (73) passes through the transverse plate (72) and the axis of the shift shaft (73) is perpendicular to the transverse plate (72), each group of shift shafts (73) is symmetrically mounted with a shift block (74) by means of sliding fit, and the shift blocks (74) are respectively located on both sides of the transverse plate (72), and a material receiving pipe (75) is fixedly mounted on the shift block (74), the axis of the material receiving pipe (75) is parallel to the axis of the feed pipe (5), and a material receiving bin (76) is fixedly mounted at the lower end of the material receiving pipe (75), and the material receiving bin (76) is communicated with the material receiving pipe (75).

3. A foam fire extinguishing agent production device according to claim 2, characterized in that: A plurality of blocks (731) are fixedly mounted on each group of the shift shafts (73), the blocks (731) are symmetrically distributed on both sides of the transverse plate (72), and the shift block (74) is located between two adjacent blocks (731) on the same side of the transverse plate (72), the shift block (74) and the block (731) are connected by a tension spring (732), a staggered cylinder (721) is hingedly mounted in the middle notch of the transverse plate (72), and the staggered shafts (721) are mounted on both ends of the transverse plate (72) by means of rotational fit. 22), a misalignment rod (723) is fixedly installed in the middle of the misalignment shaft (722), the misalignment rod (723) is located in the middle notch of the horizontal plate (72) and the misalignment rod (723) is located below the shift shaft (73), the misalignment cylinder (721) is installed obliquely and the output shaft of the misalignment cylinder (721) is hinged to one end of the misalignment rod (723), and a shift rod (741) is fixedly installed at the end of the shift block (74), the shift rod (741) extends downward and the misalignment rod (723) is in sliding contact with the shift rod (741).

4. A foam fire extinguishing agent production device according to claim 3, characterized in that: A docking ring (752) is fixedly mounted on the upper end of the inner wall of the sleeve (751), and the upper end of the docking ring (752) is a downwardly inclined inclined surface structure. The sleeve (751), the docking ring (752) and the inner tube (52) are interconnected.

5. A foam fire extinguishing agent production device according to claim 4, characterized in that: The upper end port of the material receiving pipe (75) is lower than the lower end surface of the discharge ring (411), the lower end port of the inner pipe (52) is flush with the lower end port of the feed pipe (5), the upper end port of the sleeve (751) is flush with the upper end port of the material receiving pipe (75), and the distance between the lower end port of the inner pipe (52) and the upper end port of the sleeve (751) is less than the thickness of the upper convex ring of the discharge ring (411).

6. A foam fire extinguishing agent production device according to claim 5, characterized in that: The lower end of the receiving bin (76) is fixedly mounted with a plurality of liquid outlet pipes (761), and the liquid outlet pipes (761) are all connected to the receiving bin (76). The lower end of the sleeve (751) is fixedly mounted with a plurality of sealing strips (753), and the upper end of the sealing strip (753) is connected to the upper end of the receiving bin (76) through a spring piece (754). The lower end of the receiving bin (76) is evenly provided with sealing grooves, and the sealing grooves are all located at the port position of the liquid outlet pipe (761). The lower end of the sealing strip (753) is located above the port of the liquid outlet pipe (761), and the lower end of the sealing strip (753) is pressed against the sealing groove by sliding fit.

7. The foam fire extinguishing agent production device according to claim 1, characterized in that: The production method using the above foam fire extinguishing agent production device comprises the following steps: S1. Operation inspection: First, the staff prepares the raw materials for the production of foam fire extinguishing agent, connects the discharge pipes of each raw material storage tank to the feed pipe (5), and checks the smoothness of the pipes; S2, proportional filling: the production raw materials of a predetermined proportion are delivered and filled into the premixing cylinder (1) through the coordinated work of the material receiving rack (7) and the material feeding pipe (5); S3, mixing preparation: starting the mixing motor (9) to operate, driving the mixing shaft (8) to rotate by the mixing motor (9), and mixing and stirring the various production raw materials filled in the premixing cylinder (1); S4. Discharge and collection: After the foam fire extinguishing agent is prepared, the discharge port (6) at the bottom of the premixing cylinder (1) is opened to discharge the foam fire extinguishing agent from the premixing cylinder (1) for the next step of transportation or bottling.

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