Full-automatic pulping device and use method

Abstract

The invention discloses a full-automatic slurrying device and a using method, and belongs to the technical field of mortar preparation, the full-automatic slurrying device comprises a feeding mechanism, a stirring barrel, a primary screening mechanism, a rotary screen mechanism and a discharging mechanism, the feeding mechanism comprises a mounting frame and a belt conveyor fixed to the top of the mounting frame, and a first stirring motor is fixed to the top of the stirring barrel; a discharging pipe is arranged at the side bottom end of the stirring barrel, the primary screening mechanism comprises a first stirring pool arranged on one side of the stirring barrel, a filtering grid is arranged at a pool opening of the first stirring pool, the rotary screen mechanism is arranged on one side of the primary screening mechanism, and the discharging mechanism comprises a second stirring pool arranged at the bottom of the rack. The full-automatic mortar making device is advanced in design, compact in structure and convenient to use, automatic and continuous operation can be achieved in the whole mortar making process, the production efficiency is greatly improved, the labor cost is reduced, impurities in mortar are filtered out to a great extent, and the mortar quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mortar preparation, and particularly relates to a fully automatic mortar making device and a use method thereof. Background Art

[0002] Mortar is the bonding material used for bricklaying in construction. It is made of a certain proportion of sand and binding materials (cement, lime paste, clay, etc.) plus water. It is also called mortar or mortar. Commonly used mortars include cement mortar, mixed mortar (or cement lime mortar), lime mortar and clay mortar.

[0003] The existing mortar preparation device has the following problems: the existing mortar preparation device requires the user to manually transport the raw materials up and down, which increases the user's workload and work pressure, and is not conducive to improving work efficiency. At the same time, the existing mortar preparation device cannot screen out impurities in the raw materials during production, which may result in unqualified quality of the prepared finished mortar. Therefore, it is urgent to design a fully automatic mortar preparation device and a method of use to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a fully automatic pulping device and a method of use to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a fully automatic pulping device, comprising:

[0006] A feeding mechanism, the feeding mechanism comprising a mounting frame and a belt conveyor fixed on the top of the mounting frame, an operating platform is provided on one side of the mounting frame, and a feeding pipe is provided on the operating platform;

[0007] A stirring barrel, wherein a stirring motor is fixed on the top of the stirring barrel, a stirring shaft is fixedly connected to the bottom end of the output shaft of the stirring motor, a stirring blade is fixed on the stirring shaft, and a discharge pipe is provided at the side bottom end of the stirring barrel;

[0008] A primary screening mechanism, the primary screening mechanism comprises a stirring pool 1 arranged on one side of the stirring barrel, a filtering grid is arranged at the pool mouth of the stirring pool 1, a stirring motor 2 is arranged on the top of the stirring pool 1, a stirring shaft 2 is fixedly connected to the bottom end of the output shaft of the stirring motor 2, a stirring blade 2 is fixed on the stirring shaft 2, and a submersible pump 1 is also arranged on the top of the stirring pool 1;

[0009] A drum screen mechanism, wherein the drum screen mechanism is arranged on one side of the primary screening mechanism, the drum screen mechanism comprises a frame and a drum screen arranged on the top of the frame, a rotating motor is arranged at one end of the drum screen, and a chute is arranged at the bottom of the drum screen;

[0010] The discharging mechanism comprises a stirring tank 2 arranged at the bottom of the frame, a stirring motor 3 is arranged on the top of the stirring tank 2, a stirring shaft 3 is fixedly connected to the bottom end of the output shaft of the stirring motor 3, a stirring blade 3 is fixed on the stirring shaft 3, and a submersible pump 2 is also arranged on the top of the stirring tank 2.

[0011] Furthermore, the feed pipe is a bifurcated pipe, one end of the main pipe of the feed pipe is flush with one end of the belt conveyor, and one end of the branch pipe of the feed pipe extends to the top of the mixing barrel.

[0012] Furthermore, one end of the discharge pipe is connected to the stirring barrel, and the other end extends to the top of the stirring tank, and a stop valve is provided on the discharge pipe.

[0013] Furthermore, there are two stirring barrels in total, and the two stirring barrels are respectively arranged corresponding to the branch pipes of the feeding pipe, and the discharge pipes of the two stirring barrels extend to the top of the stirring pool.

[0014] Furthermore, the submersible pump is connected to the drum screen through a slurry delivery pipe.

[0015] Furthermore, the drum screen is a truncated cone structure, a rotating shaft is provided at the center of the drum screen, the rotating shaft is connected to the output shaft of the rotating motor through a coupling, and the sieve holes of the drum screen are rectangular structures, wherein the length of the sieve holes is not greater than 20 mm, and the width of the sieve holes is not greater than 3 mm.

[0016] Furthermore, the bottom end of the chute extends to the top of the second stirring tank.

[0017] Furthermore, guardrails are fixed around the top of the frame.

[0018] Furthermore, the submersible pump 2 is provided with a slurry delivery pipe 2 for delivering the mortar in the mixing tank 2.

[0019] A method for using a fully automatic pulping device, the method comprising the following steps:

[0020] S1: Loading, start the belt conveyor, continuously transport the raw materials from one end to the other end, and slide them into two mixing barrels through the feeding pipe. Go up to the operating platform through the ladder to observe the feeding situation. When the feeding pipe is blocked, the belt conveyor can be shut down by the emergency stop switch on the operating platform, and restarted after the feeding pipe is unblocked;

[0021] S2: Mixing materials. Start the stirring motor 1. The stirring motor 1 drives the stirring shaft 1 to rotate through the coupling. The stirring shaft 1 drives the stirring blade 1 to rotate, so as to continuously stir the raw materials in the mixing barrel, fully mix the various raw materials and prevent the raw materials from piling up and agglomerating. Add a proper amount of water during the stirring process to make mortar. Open the stop valve and transport the mortar in the mixing barrel to the mixing tank 1 through the discharge pipe.

[0022] S3: Preliminary screening: the mortar output from the discharge pipe is filtered through the filter grid to remove larger impurities, and the stirring motor 2 is started. The stirring motor 2 drives the stirring shaft 2 to rotate through the coupling, and the stirring shaft 2 drives the stirring blade 2 to rotate, so as to continuously stir the mortar in the stirring tank 1. Then, the submersible pump 1 is started to pump the mortar into the drum screen through the slurry conveying pipe 1.

[0023] S4: Fine screening, start the rotating motor, the rotating motor drives the drum screen to rotate, so as to filter out the smaller impurities in the mortar in the drum screen. The filtered impurities move from one end to the other end under the rotation of the drum screen, which is convenient for cleaning. The filtered mortar enters the second mixing tank through the chute;

[0024] S5: Discharging, starting the stirring motor three, stirring motor three drives the stirring shaft three to rotate through the coupling, stirring shaft three drives the stirring blade three to rotate, so as to continuously stir the mortar in the stirring tank two, and then starting the submersible pump two, and pumping the mortar into the slurry storage tank through the slurry delivery pipe two.

[0025] The technical effects and advantages of the present invention are as follows: the fully automatic pulping device has advanced design, compact structure and is easy to use. By arranging a feeding mechanism, a stirring barrel, a primary screening mechanism, a drum screen mechanism and a discharging mechanism, the whole process of pulping can be automated and continuous, which greatly improves production efficiency and is also beneficial to reduce labor costs. The prepared mortar is filtered twice, coarsely and finely, through the primary screening mechanism and the drum screen mechanism, impurities in the mortar are filtered out to a great extent, thereby improving the quality of the mortar. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view of the present invention;

[0027] Figure 2 It is a left side view of the present invention;

[0028] Figure 3 It is a cross-sectional view along the BB direction of the present invention;

[0029] Figure 4 It is a cross-sectional view along the CC direction of the present invention.

[0030] In the figure: 100, feeding mechanism; 101, mounting frame; 102, belt conveyor; 103, operating platform; 104, feeding pipe; 200, mixing barrel; 201, mixing motor 1; 202, mixing shaft 1; 203, mixing blade 1; 204, discharge pipe; 205, stop valve; 300, primary screening mechanism; 301, mixing tank 1; 302, filter grid; 303, mixing motor 2; 304, mixing shaft 2; 305, stirring blade two; 306, submersible pump one; 307, slurry conveying pipe one; 400, drum screen mechanism; 401, frame; 402, drum screen; 403, rotating motor; 404, chute; 405, guardrail; 500, discharging mechanism; 501, stirring tank two; 502, stirring motor three; 503, stirring shaft three; 504, stirring blade three; 505, submersible pump two; 506, slurry conveying pipe two. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The present invention provides Figure 1-4 A fully automatic pulping device as shown in , comprising:

[0035] The feeding mechanism 100 includes a mounting frame 101 and a belt conveyor 102 fixed on the top of the mounting frame 101. An operating platform 103 is provided on one side of the mounting frame 101, and a feeding pipe 104 is provided on the operating platform 103;

[0036] A stirring barrel 200, a stirring motor 201 is fixed on the top of the stirring barrel 200, a stirring shaft 202 is fixedly connected to the bottom end of the output shaft of the stirring motor 201, a stirring blade 203 is fixed on the stirring shaft 202, and a discharge pipe 204 is provided at the bottom end of the side of the stirring barrel 200;

[0037] The primary screening mechanism 300 includes a stirring pool 301 disposed on one side of the stirring barrel 200, a filtering grid 302 is disposed at the pool mouth of the stirring pool 301, a stirring motor 303 is disposed on the top of the stirring pool 301, a stirring shaft 304 is fixedly connected to the bottom end of the output shaft of the stirring motor 303, a stirring blade 305 is fixed on the stirring shaft 304, and a submersible pump 306 is also disposed on the top of the stirring pool 301;

[0038] The drum screen mechanism 400 is arranged at one side of the primary screening mechanism 300. The drum screen mechanism 400 includes a frame 401 and a drum screen 402 arranged on the top of the frame 401. A rotating motor 403 is arranged at one end of the drum screen 402. A chute 404 is arranged at the bottom of the drum screen 402.

[0039] The discharging mechanism 500 includes a stirring tank 2 501 arranged at the bottom of the frame 401, a stirring motor 3 502 is arranged on the top of the stirring tank 2 501, a stirring shaft 3 503 is fixedly connected to the bottom end of the output shaft of the stirring motor 3 502, a stirring blade 3 504 is fixed on the stirring shaft 3 503, and a submersible pump 2 505 is also arranged on the top of the stirring tank 2 501.

[0040] For example, see Figure 2-Figure 3 As shown, the feed pipe 104 is a bifurcated pipe, one end of the main pipe of the feed pipe 104 is flush with one end of the belt conveyor 102 , and one end of the branch pipe of the feed pipe 104 extends to the top of the mixing barrel 200 .

[0041] In this technical solution, the belt conveyor 102 conveys the pulping raw materials to one end of the feeding pipe 104. The pulping raw materials are separated by the feeding pipe 104 and then conveyed to multiple mixing barrels 200. This is beneficial to increasing the conveying capacity of the belt conveyor 102 and reducing the amount of raw materials falling into the mixing barrel 200, making mixing more convenient.

[0042] For example, see Figure 1-Figure 2 As shown, one end of the discharge pipe 204 is connected to the mixing barrel 200 , and the other end extends to the top of the mixing tank 301 . A stop valve 205 is provided on the discharge pipe 204 .

[0043] In this technical solution, while the pulping raw materials are being stirred in the mixing barrel 200, an appropriate amount of water is added to form mortar. The mortar in the mixing barrel 200 can be transported to the mixing tank 301 through the discharge pipe 204. Whether the discharge pipe 204 discharges the material can be controlled by controlling the opening and closing of the stop valve 205.

[0044] For example, see Figure 1 As shown, there are two mixing barrels 200 , which are respectively arranged corresponding to the branch pipes of the feeding pipe 104 , and the discharge pipes 204 of the two mixing barrels 200 extend to the top of the mixing pool 1 301 .

[0045] In this technical solution, two mixing barrels 200 perform mixing operations simultaneously, which greatly improves the pulping efficiency.

[0046] For example, see Figure 2 As shown, the submersible pump 306 is connected to the drum screen 402 through a slurry delivery pipe 307.

[0047] In this technical solution, the submersible pump 306 can pump the mortar in the mixing tank 301 into the drum screen 402 for further fine filtration, and a bearing is provided at the connection between the slurry delivery pipe 307 and the drum screen 402 to ensure that the drum screen 402 will not drive the slurry delivery pipe 307 to rotate together during the rotation process.

[0048] For example, see Figure 1-Figure 2 and Figure 4 As shown, the drum screen 402 is a truncated cone structure, a rotating shaft is provided at the center of the drum screen 402, and the rotating shaft is connected to the output shaft of the rotating motor 403 through a coupling, and the sieve holes of the drum screen 402 are rectangular structures, wherein the length of the sieve holes is not greater than 20 mm, and the width of the sieve holes is not greater than 3 mm.

[0049] In this technical solution, the rotating motor 403 drives the drum screen 402 to rotate, and the drum screen 402 performs fine filtering on the mortar entering the inside thereof, and can filter out smaller particle impurities in the mortar.

[0050] For example, see Figure 2 and Figure 4 As shown, the bottom end of the chute 404 extends to the top of the second mixing tank 501.

[0051] In this technical solution, the mortar filtered by the drum screen 402 flows out from the drum screen 402 and enters the mixing tank 501 through the chute 404.

[0052] For example, see Figure 2 and Figure 4 As shown, guardrails 405 are fixed around the top of the frame 401.

[0053] In this technical solution, the provision of the guardrail 405 can provide safety protection for workers to climb onto the rack 401 for observation or maintenance.

[0054] For example, see Figure 2 As shown, the submersible pump 505 is provided with a slurry delivery pipe 506 for delivering the mortar in the mixing tank 501.

[0055] In this technical solution, the submersible pump 505 can pump out the finished mortar in the mixing tank 501 and transport it to the external slurry storage tank through the slurry delivery pipe 506.

[0056] A method for using a fully automatic pulping device, the method comprising the following steps:

[0057] S1: Loading, start the belt conveyor, continuously transport the raw materials from one end to the other end, and slide them into two mixing barrels through the feeding pipe. Go up to the operating platform through the ladder to observe the feeding situation. When the feeding pipe is blocked, the belt conveyor can be shut down by the emergency stop switch on the operating platform, and restarted after the feeding pipe is unblocked;

[0058] S2: Mixing materials. Start the stirring motor 1. The stirring motor 1 drives the stirring shaft 1 to rotate through the coupling. The stirring shaft 1 drives the stirring blade 1 to rotate, so as to continuously stir the raw materials in the mixing barrel, fully mix the various raw materials and prevent the raw materials from piling up and agglomerating. Add a proper amount of water during the stirring process to make mortar. Open the stop valve and transport the mortar in the mixing barrel to the mixing tank 1 through the discharge pipe.

[0059] S3: Preliminary screening: the mortar output from the discharge pipe is filtered through the filter grid to remove larger impurities, and the stirring motor 2 is started. The stirring motor 2 drives the stirring shaft 2 to rotate through the coupling, and the stirring shaft 2 drives the stirring blade 2 to rotate, so as to continuously stir the mortar in the stirring tank 1. Then, the submersible pump 1 is started to pump the mortar into the drum screen through the slurry conveying pipe 1.

[0060] S4: Fine screening, start the rotating motor, the rotating motor drives the drum screen to rotate, so as to filter out the smaller impurities in the mortar in the drum screen. The filtered impurities move from one end to the other end under the rotation of the drum screen, which is convenient for cleaning. The filtered mortar enters the second mixing tank through the chute;

[0061] S5: Discharging, starting the stirring motor three, stirring motor three drives the stirring shaft three to rotate through the coupling, stirring shaft three drives the stirring blade three to rotate, so as to continuously stir the mortar in the stirring tank two, and then starting the submersible pump two, and pumping the mortar into the slurry storage tank through the slurry delivery pipe two.

[0062] Working principle: When the fully automatic pulping device is used, the pulping raw materials are first transported to the mixing barrel 200 through the belt conveyor 102 and the feeding pipe 104, and then transported to the mixing tank 301 through the discharge pipe 204 after adding water and stirring to make the pulp. Before the mortar enters the mixing tank 301, it is first filtered out of larger impurities through the filter grid 302, and then the mortar entering the mixing tank 301 is continuously stirred, and the mortar is pumped into the drum screen 402 through the submersible pump 306 and the slurry delivery pipe 307. The smaller impurities in the mortar are filtered out through the drum screen 402, and the filtered mortar enters the mixing tank 501 through the chute 404 for temporary storage, and then the mortar entering the mixing tank 501 is continuously stirred, and the mortar is pumped into the slurry storage tank through the submersible pump 505 and the slurry delivery pipe 506. The fully automatic pulping device has an advanced design, a compact structure and is easy to use. By arranging a feeding mechanism 100, a mixing barrel 200, a primary screening mechanism 300, a drum screen mechanism 400 and a discharging mechanism 500, the entire pulping process can be automated and continuous, which greatly improves production efficiency and is also conducive to reducing labor costs. The prepared mortar is filtered twice, coarse and fine, by the primary screening mechanism 300 and the drum screen mechanism 400, impurities in the mortar are filtered out to a great extent, thereby improving the quality of the mortar.

[0063] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic pulping device, characterized in that: include: A feeding mechanism (100), the feeding mechanism (100) comprising a mounting frame (101) and a belt conveyor (102) fixed on the top of the mounting frame (101), an operating platform (103) being provided on one side of the mounting frame (101), and a feeding pipe (104) being provided on the operating platform (103); A stirring barrel (200), wherein a stirring motor (201) is fixed on the top of the stirring barrel (200), a stirring shaft (202) is fixedly connected to the bottom end of the output shaft of the stirring motor (201), a stirring blade (203) is fixed on the stirring shaft (202), and a discharge pipe (204) is provided at the side bottom end of the stirring barrel (200); A primary screening mechanism (300), the primary screening mechanism (300) comprising a stirring pool (301) arranged on one side of a stirring barrel (200), a filtering grid (302) being arranged at the pool mouth of the stirring pool (301), a stirring motor (303) being arranged on the top of the stirring pool (301), a stirring shaft (304) being fixedly connected to the bottom end of the output shaft of the stirring motor (303), a stirring blade (305) being fixed on the stirring shaft (304), and a submersible pump (306) being arranged on the top of the stirring pool (301); A drum screen mechanism (400), the drum screen mechanism (400) being arranged on one side of the primary screening mechanism (300), the drum screen mechanism (400) comprising a frame (401) and a drum screen (402) arranged on the top of the frame (401), a rotating motor (403) being arranged at one end of the drum screen (402), and a chute (404) being arranged at the bottom of the drum screen (402); The discharging mechanism (500) comprises a stirring tank 2 (501) arranged at the bottom of a frame (401), a stirring motor 3 (502) is arranged on the top of the stirring tank 2 (501), a stirring shaft 3 (503) is fixedly connected to the bottom end of the output shaft of the stirring motor 3 (502), a stirring blade 3 (504) is fixed on the stirring shaft 3 (503), and a submersible pump 2 (505) is also arranged on the top of the stirring tank 2 (501).

2. The fully automatic pulping device according to claim 1, characterized in that: The feed pipe (104) is a bifurcated pipe, one end of the main pipe of the feed pipe (104) is flush with one end of the belt conveyor (102), and one end of the branch pipe of the feed pipe (104) extends to the top of the mixing barrel (200).

3. The fully automatic pulping device according to claim 1, characterized in that: One end of the discharge pipe (204) is connected to the stirring barrel (200), and the other end extends to the top of the stirring tank (301). A stop valve (205) is provided on the discharge pipe (204).

4. The fully automatic pulping device according to claim 1, characterized in that: There are two stirring barrels (200) in total. The two stirring barrels (200) are respectively arranged corresponding to the branch pipes of the feeding pipe (104). The discharge pipes (204) of the two stirring barrels (200) extend to the top of the stirring pool (301).

5. The fully automatic pulping device according to claim 1, characterized in that: The submersible pump 1 (306) is connected to the drum screen (402) via a slurry delivery pipe 1 (307).

6. The fully automatic pulping device according to claim 1, characterized in that: The drum screen (402) is a truncated cone structure, a rotating shaft is provided at the center of the drum screen (402), the rotating shaft is connected to the output shaft of the rotating motor (403) through a coupling, and the sieve hole of the drum screen (402) is a rectangular structure, wherein the length of the sieve hole is not greater than 20 mm, and the width of the sieve hole is not greater than 3 mm.

7. The fully automatic pulping device according to claim 1, characterized in that: The bottom end of the chute (404) extends to the top of the second stirring tank (501).

8. The fully automatic pulping device according to claim 1, characterized in that: Guardrails (405) are fixed around the top of the frame (401).

9. The fully automatic pulping device according to claim 1, characterized in that: The second submersible pump (505) is provided with a second slurry delivery pipe (506) for delivering the mortar in the second stirring tank (501).

10. The method for using the fully automatic pulping device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Loading, start the belt conveyor, continuously transport the raw materials from one end to the other end, and slide them into two mixing barrels through the feeding pipe. Go up to the operating platform through the ladder to observe the feeding situation. When the feeding pipe is blocked, the belt conveyor can be shut down by the emergency stop switch on the operating platform, and restarted after the feeding pipe is unblocked; S2: Mixing materials. Start the stirring motor 1. The stirring motor 1 drives the stirring shaft 1 to rotate through the coupling. The stirring shaft 1 drives the stirring blade 1 to rotate, so as to continuously stir the raw materials in the mixing barrel, fully mix the various raw materials and prevent the raw materials from piling up and agglomerating. Add a proper amount of water during the stirring process to make mortar. Open the stop valve and transport the mortar in the mixing barrel to the mixing tank 1 through the discharge pipe. S3: Preliminary screening: the mortar output from the discharge pipe is filtered through the filter grid to remove larger impurities, and the stirring motor 2 is started. The stirring motor 2 drives the stirring shaft 2 to rotate through the coupling, and the stirring shaft 2 drives the stirring blade 2 to rotate, so as to continuously stir the mortar in the stirring tank 1. Then, the submersible pump 1 is started to pump the mortar into the drum screen through the slurry conveying pipe 1. S4: Fine screening, start the rotating motor, the rotating motor drives the drum screen to rotate, so as to filter out the smaller impurities in the mortar in the drum screen. The filtered impurities move from one end to the other end under the rotation of the drum screen, which is convenient for cleaning. The filtered mortar enters the second mixing tank through the chute; S5: Discharging, starting the stirring motor three, stirring motor three drives the stirring shaft three to rotate through the coupling, stirring shaft three drives the stirring blade three to rotate, so as to continuously stir the mortar in the stirring tank two, and then starting the submersible pump two, and pumping the mortar into the slurry storage tank through the slurry delivery pipe two.

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