JP2007237082A - Liquid treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid treatment apparatus capable of efficiently cleaning a liquid. <P>SOLUTION: The treatment device 12 of the liquid treatment apparatus has a storage tank 12 and a suspended matter recovery mechanism 22. The suspended matter recovery mechanism 22 includes a motor 27 and a scraper 35. By rotating the rotary shaft 27b of the motor 27, the scraper 35 travels back and forth along the liquid surface of a waste liquid 15 between a partition plate 26 and an inclined face 23a. The scraper 35 scrapes and collects a suspended matter 16 suspended on the liquid surface of the waste liquid 15 when it travels from the partition plate 26 to the inclined face 23a. The scraped and collected suspended matter 16 is discharged from a discharge duct 40. The moving speed of the scraper 35 is reduced as it travels close to the inclined face 23a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid processing apparatus for purifying a liquid.

  In recent years, interest in environmental issues has increased, and efforts have been made to purify waste liquid in restaurants and factories. In many cases, waste liquids in restaurants and the like contain a large amount of fats and oils, and in order to purify the waste liquids efficiently, it is important to reliably remove the fats and oils. In such waste liquid containing fats and oils, the fats and oils float on the liquid surface of the waste liquid. Therefore, conventionally, an apparatus for purifying waste liquid by removing oil and fat floating on the liquid surface has been proposed.

For example, in the liquid separation device described in Patent Document 1, the liquid is stored in the separation tank, and the oil and fat that floats on the liquid surface is discharged from the drain pipe.
Japanese Patent Laid-Open No. 2002-210301

  By the way, in the liquid separation apparatus of the above-mentioned patent document 1, the scraper installed in the separation tank is moved along the liquid surface to collect the oil and fat into the drain pipe, but water flows into the drain pipe together with the oil and fat. Sometimes. Oils and fats discharged from the drain pipe are recovered by the recovery container, but when a large amount of water flows together with the oils and fats, the recovery container may overflow with water. Therefore, the fats and oils in the collection container must be frequently discarded, and work efficiency is reduced.

  The objective of this invention is providing the liquid processing apparatus which can purify | clean a liquid efficiently.

  (1) A liquid processing apparatus according to the present invention is a liquid processing apparatus that separates a liquid and a suspended matter floating in the liquid, and includes a storage tank that has a side surface and stores the liquid, and a liquid stored in the storage tank. Floating matter collection means for collecting floating matter floating in the tank, and a discharge unit provided adjacent to the side surface of the storage tank for discharging the floating matter collected by the floating matter collection means. The means includes a moving member provided so as to be movable in one direction and the reverse direction from a predetermined position above the storage tank toward the upper side, a power generator for generating power, and power generated by the power generator. A rotating shaft that is rotated by the rotating shaft, a motion converting member that converts the rotating motion of the rotating shaft into a reciprocating motion of the moving member in one direction and the reverse direction, and a liquid level in the storage tank in conjunction with the reciprocating motion of the moving member. Reciprocally move along A collecting member that collects floating substances and moves them from the discharge part when moving from the position to the side surface, and the moving speed of the collecting member near the side surface is lower than the maximum reciprocating speed of the collecting member .

  According to the liquid processing apparatus, the rotating shaft is rotated by the power generated by the power generator. The rotational motion of the rotating shaft is converted by the motion converting member into a reciprocating motion of the moving member in one direction and the reverse direction from the predetermined position above the storage tank to the upper side. The collecting member reciprocates along the liquid level of the liquid in the storage tank in conjunction with the reciprocating movement of the moving member, collects floating substances when moving from a predetermined position in the storage tank to the side surface, and discharges To drain.

  In this case, since the moving speed of the collecting member in the vicinity of the side surface is lower than the maximum speed of the reciprocating movement of the collecting member, it is possible to prevent the liquid surface of the liquid from greatly undulating in the vicinity of the side surface, and the liquid is discharged beyond the side surface. It can be prevented from being discharged from the section. As a result, only floating substances can be discharged from the discharge section, and the liquid can be purified efficiently.

  Further, the collection member is reciprocated by converting the rotation of the rotating shaft into a reciprocating motion in one direction and the opposite direction by the motion converting member. Therefore, it is not necessary to provide a complicated switching mechanism for switching the moving direction of the collecting member. Thereby, the manufacturing cost of the liquid processing apparatus can be reduced, and the liquid processing apparatus can be downsized.

  (2) The upper end portion of the side surface has an inclined surface inclined obliquely upward from the vertical direction to the discharge portion side, a part of the inclined surface is exposed from the liquid, and the collecting member discharges while moving on the inclined surface The suspended matter may be discharged from the section.

  In this case, the suspended matter can be sufficiently drained on the inclined surface. Thereby, the liquid can be purified more efficiently.

  (3) The motion converting member is attached to the rotating shaft, and rotates in conjunction with the rotating motion of the rotating shaft, a connecting member that connects the rotating member and the moving member, and a moving path of the moving member in one direction. And a restricting member for restricting in the opposite direction, the connecting member has a first connecting part and a second connecting part at positions separated from each other, and the rotating member is first at a position different from the rotating shaft. The connecting part may have a first connected part to which the second connecting part is rotatably attached, and the moving member may have a second connected part to which the second connecting part is rotatably attached.

  In this case, the rotational motion of the rotating shaft is transmitted to the moving member via the rotating member and the connecting member. The movement path of the moving member is regulated in one direction and in the opposite direction by the regulating member. Therefore, when the rotating shaft rotates, the moving member moves in one direction and in the opposite direction. Here, the moving speed of the moving member in the vicinity of the end portion in the moving path is lower than the moving speed in the central part of the moving path. Accordingly, the moving speed of the collecting member in the vicinity of the end in the moving path is also reduced. Thereby, it is possible to prevent the liquid level of the liquid from undulating in the vicinity of the side surface, and it is possible to prevent the liquid from being discharged from the discharge portion beyond the side surface. As a result, only floating substances can be discharged from the discharge section, and the liquid can be purified efficiently.

  Further, the moving speed of the moving member in the vicinity of the end in the moving path can be lowered while rotating the rotating shaft at a constant speed. That is, it is not necessary to provide a complicated speed control mechanism for changing the moving speed of the moving member and the collecting member. Thereby, the manufacturing cost of the liquid processing apparatus can be reduced, and the liquid processing apparatus can be downsized.

  (4) The rotating shaft may be provided in the vicinity of the end of the moving path of the moving member on the discharge unit side.

  In this case, the moving speed of the moving member in the vicinity of the end of the moving path can be reliably lowered. Thereby, it is possible to reliably prevent the liquid surface of the liquid from undulating substantially in the vicinity of the side surface, and to reliably prevent the liquid from being discharged from the discharge portion beyond the side surface. As a result, only the suspended matter can be reliably discharged from the discharge portion, and the liquid can be purified more efficiently.

  (5) The rotation axis may be provided at a position on an extension line of the movement path.

  In this case, the liquid processing apparatus can be easily manufactured. Moreover, the arrangement position and dimension of each component which comprises a motion conversion member can be determined easily.

  (6) The rotation axis is provided at a position spaced a predetermined distance laterally from the extension line of the movement path, and the predetermined distance is determined from the distance from the first connection part to the second connection part and the rotation axis. It may be less than or equal to the distance to the first connected portion.

  In this case, the moving speed of the moving member in one direction is lower than the moving speed of the moving member in the reverse direction. Therefore, the moving speed of the collecting member when collecting the suspended matter is lowered. Accordingly, it is possible to reliably prevent the liquid surface of the liquid from greatly undulating, and to reliably collect the suspended matter. As a result, the liquid can be purified sufficiently efficiently.

  (7) When one rotation of the rotating shaft is divided into the first rotation and the second rotation, the motion conversion member converts the first rotation into a one-way motion of the moving member, and the second rotation The rotation angle in the first rotation may be larger than the rotation angle in the second rotation, by converting the movement of the moving member in the reverse direction.

  In this case, the moving speed of the moving member in one direction is lower than the moving speed of the moving member in the reverse direction. Therefore, the moving speed of the collecting member when collecting the suspended matter is lowered. Accordingly, it is possible to reliably prevent the liquid surface of the liquid from greatly undulating, and to reliably collect the suspended matter. As a result, the liquid can be purified sufficiently efficiently.

  Moreover, the moving speed in one direction of the moving member can be lowered while rotating the rotating shaft at a constant speed. That is, it is not necessary to provide a complicated speed control mechanism for changing the moving speed of the moving member and the collecting member. Thereby, the manufacturing cost of the liquid processing apparatus can be reduced, and the liquid processing apparatus can be downsized.

  (8) The motion converting member is attached to the rotating shaft and rotates in conjunction with the rotating motion of the rotating shaft, a restricting member that restricts the moving path of the moving member in one direction and the reverse direction, and a predetermined position A connection member that is supported by a support shaft provided on the support shaft and that rotates about the support shaft. The connection member includes a first engagement portion that extends in a long shape from the support shaft side, and a first engagement portion. A second engaging portion extending in an elongated shape from the end side of the engaging portion, and the rotating member is slidably engaged with the first engaging portion at a position different from the rotation axis. And the moving member has a second engaged portion that is slidably engaged with the second engaging portion, and the movable member includes a rotating shaft and the first engaging portion. The distance between them is smaller than the distance between the rotating shaft and the support shaft and the distance between the rotating shaft and the restricting member, and the connecting member is linked with the first rotation of the rotating shaft. Rotates counter, it may be rotated in the opposite direction in conjunction with the second rotation of the rotary shaft.

  In this case, the first engagement portion performs a circular motion as the rotation shaft rotates. As the first engaging portion moves circularly, the connecting member rotates about the support shaft. When the connecting member rotates, the moving member moves. The connecting member rotates in one direction in conjunction with the first rotation of the rotating shaft, and rotates in the opposite direction in conjunction with the second rotation of the rotating shaft. When the connecting member rotates in one direction, the moving member moves in one direction, and when the connecting member rotates in the opposite direction, the moving member moves in the opposite direction.

  Here, since the rotation angle in the first rotation is larger than the rotation angle in the second rotation, the moving speed of the moving member in one direction is lower than the moving speed of the moving member in the reverse direction. Therefore, the moving speed of the collecting member when collecting the suspended matter is lowered. Accordingly, it is possible to reliably prevent the liquid surface of the liquid from greatly undulating, and to reliably collect the suspended matter. As a result, the liquid can be purified sufficiently efficiently.

  (9) The liquid processing apparatus further includes a liquid inflow portion for allowing the liquid to flow into the storage tank, and a liquid outflow portion for allowing the liquid to flow out from the storage tank, and the storage tank has first and second regions. The liquid inflow portion is provided in the first region, the liquid outflow portion is provided in the second region, and the upper portions of the first and second regions are shielded from each other by the partition member. The collecting member may move in the first region in communication with the lower region.

  In this case, the liquid that has flowed into the first region flows into the second region from below the first region. Moreover, since the upper part of the 1st and 2nd area | region is mutually interrupted | blocked by the partition member, it is prevented that a suspended | floating matter moves from a 1st area | region to a 2nd area | region. Thereby, it is possible to prevent the liquid containing the suspended matter from flowing out from the liquid outflow portion. In addition, since the collecting member moves in the first area, the suspended matter staying in the first area can be reliably discharged from the discharge portion.

  According to the present invention, since the moving speed of the collecting member in the vicinity of the side surface is lower than the maximum speed of the reciprocating movement of the collecting member, it is possible to prevent the liquid level of the liquid from undulating in the vicinity of the side surface. It is possible to prevent the discharge from exceeding the discharge portion. As a result, only floating substances can be discharged from the discharge section, and the liquid can be purified efficiently.

  Further, the collection member is reciprocated by converting the rotation of the rotating shaft into a reciprocating motion in one direction and the opposite direction by the motion converting member. Therefore, it is not necessary to provide a complicated switching mechanism for switching the moving direction of the collecting member. Thereby, the manufacturing cost of the liquid processing apparatus can be reduced, and the liquid processing apparatus can be downsized.

  Hereinafter, a liquid processing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

(1) First Embodiment (a) Configuration of Liquid Treatment Device FIG. 1 is a schematic diagram showing a liquid treatment device according to a first embodiment of the present invention. In FIG. 1, in order to clarify the positional relationship, arrows indicating the X direction, the Y direction, and the Z direction orthogonal to each other are attached. The X direction and the Y direction are orthogonal to each other in the horizontal plane, and the Z direction corresponds to the vertical direction. Also in FIGS. 2 to 7 and FIG. 9 to be described later, arrows indicating the X direction, the Y direction, and the Z direction are similarly attached.

  As shown in FIG. 1, the liquid processing apparatus 100 according to the present embodiment includes a pump 11 and a processor 12. The pump 11 is installed in the grease interceptor 13.

  The grease interceptor 13 stores waste liquid 15 from restaurants and factories that flows in through the filter 14. On the liquid surface of the waste liquid 15, a suspended matter 16 containing oil and fat, food residue, and the like is floating.

  A drainage channel 17 is formed so as to communicate with the bottom of the grease interceptor 13. The waste liquid 15 is discharged to the outside through the drainage channel 17. In addition, since the drainage channel 17 is formed at the bottom of the grease interceptor 13, the suspended matter 16 is not discharged.

  The discharge port of the pump 11 is connected to the processor 12 via the introduction pipe 18. Further, a lead-out pipe 19 is connected to the processor 12.

  An intake restriction body 11 a is connected to the suction port of the pump 11. The pump 11 sucks the suspended matter 16 together with the waste liquid 15 from the upper end of the suction regulating body 11 a and flows it into the processor 12 through the introduction pipe 18.

  Hereinafter, the processor 12 will be described in detail with reference to the drawings. FIG. 2 is a cross-sectional view of the processor 12 in the XZ plane, and FIG. 3 is a top view of the processor 12.

  As shown in FIGS. 2 and 3, a storage tank 21 and a floating substance recovery mechanism 22 are provided in the housing 20 of the processor 12.

  The storage tank 21 is provided at one side surface portion 20 a parallel to the YZ plane of the housing 20, side surface portions 20 b and 20 c (FIG. 3) parallel to the XZ plane of the housing 20, and a substantially central portion within the housing 20. It is formed by the side wall 23 and the bottom part 24 (FIG. 2) provided in the lower part in the housing 20. An inclined surface 23 a (FIG. 2) is formed at the upper end portion of the side wall 23.

  Two partition plates 25 and 26 are provided in the storage tank 21. The partition plate 25 is formed to extend upward from the bottom surface portion 24 (FIG. 2) on the side wall 23 side in the storage tank 21. The partition plate 26 is formed on the side surface portion 20 a side in the storage tank 21 so as to extend upward at a predetermined distance from the bottom surface portion 24. By these partition plates 25 and 26, three regions 21a, 21b and 21c are formed in the storage tank 21.

  An end portion of the introduction pipe 18 is connected to the region 21 a in the bottom surface portion 24 of the storage tank 21. The outlet pipe 19 is provided so as to penetrate the bottom surface portion 20 e of the housing 20 and the bottom surface portion 24 of the storage tank 21. One end portion of the outlet tube 19 opens upward at a position lower than the upper end of the inclined surface 23a and the upper end of the partition plate 26 in the region 21c. The other end (FIG. 1) of the outlet pipe 19 is opened above the grease interceptor 13 (FIG. 1).

  The waste liquid 15 pumped up by the pump 11 (FIG. 1) flows into the region 21a of the storage tank 21 from the end of the introduction pipe 18 (FIG. 2). As shown by the dotted arrows in FIG. 2, the waste liquid 15 that has flowed into the region 21a flows into the region 21b from the top of the region 21a.

  The waste liquid 15 that has flowed into the region 21b flows into the region 21c from the lower part of the region 21b. The waste liquid 15 that has flowed into the region 21c flows into the lead-out tube 19 from one end of the lead-out tube 19 above the region 21c. Thereby, the waste liquid 15 in the storage tank 21 is discharged from the other end of the outlet pipe 19 to the grease interceptor 13. In the storage tank 21, the liquid level of the waste liquid 15 is maintained at a height substantially equal to one end of the outlet pipe 19.

  Here, as described above, the waste liquid 15 pumped up by the pump 11 (FIG. 1) includes the suspended matter 16. As shown in FIG. 2, in the storage tank 21, the liquid level of the waste liquid 15 is separated into two regions by a partition plate 26. Further, the movement of the waste liquid 15 from the region 21b to the region 21c is performed in the lower part of the regions 21b and 21c. In this case, the partition plate 26 prevents the suspended matter 16 from moving to the region 21c, and the suspended matter 16 stays on the liquid surface in the regions 21a and 21b. Thereby, it is possible to prevent the floating substance 16 flowing into the storage tank 21 from flowing into the grease interceptor 13 again.

(B) Structure of floating body collection | recovery mechanism Next, the floating body collection | recovery mechanism 22 is demonstrated. The floating substance recovery mechanism 22 includes an electric motor 27 (hereinafter abbreviated as a motor 27), a rail 28, a first arm 29, a second arm 30, a connecting member 31, a moving member 32 (FIG. 3), and a support member 33. , The swing member 34 and the scraper 35.

  In the housing 20, a rectangular motor fixing base 27a is provided on the side surface portion 20d facing the side surface portion 20a. The motor 27 is fixed so that the upper portion is exposed at a substantially central portion in the Y direction of the motor fixing base 27a.

  One end side of the first arm 29 is fixed to the rotating shaft 27 b of the motor 27. The lower end of the connecting shaft 29 a is fixed to the other end side of the first arm 29. One end side of the second arm 30 is rotatably attached to the upper portion of the connecting shaft 29a. Note that the length of the second arm 30 is longer than that of the first arm 29.

  The other end of the second arm 30 is rotatably attached to the central portion of the connecting shaft 30a. The lower part of the connecting shaft 30 a is fixed to one end side of the connecting member 31. The upper part of the connecting shaft 30a is fixed to one end side of the moving member 32 (FIG. 3).

  The moving member 32 is inserted into a groove 28a (FIG. 3) formed in the rail 28 so as to be movable only in the length direction. The rail 28 is fixed to the upper surface portion 20f (FIG. 2) of the housing 20 along the X direction. As shown in FIG. 3, the center point of the rotating shaft 27b and the center point of the rail 28 (groove portion 28a) are located on the same straight line in the X direction.

  The other end side of the moving member 32 (FIG. 3) is fixed to the upper part of the connecting shaft 32a. The lower part of the connecting shaft 32 a is fixed to the other end side of the connecting member 31 and the upper part of the support member 33. A swing member 34 is swingably attached to the support member 33. A scraper 35 having substantially the same width as the storage tank 21 is fixed to the lower surface of the swing member 34. The lower part of the scraper 35 is formed in a bowl shape and is immersed in the waste liquid 15.

  In the above configuration, when the rotating shaft 27b of the motor 27 rotates, the first arm 29 rotates around the rotating shaft 27b. One end side of the second arm 30 performs a circular motion around the rotation shaft 27 b according to the rotational motion of the first arm 29. As one end side of the second arm 30 moves circularly, the connecting shaft 30 a attached to the other end side of the second arm 30 moves along the groove portion 28 a (FIG. 3) of the rail 28. Thereby, the moving member 32 (FIG. 3), the support member 33, and the swing member 34 move in the X direction. As a result, the scraper 35 moves between the partition plate 26 and the inclined surface 23a.

(C) Method for collecting suspended matter Next, a method for collecting the suspended matter 16 will be briefly described. In the following description, the position of the scraper 35 when the scraper 35 (FIG. 2) is closest to the partition plate 26 (FIG. 2) is referred to as a recovery start position, and as shown in FIG. The position of the scraper 35 when the lower end part has moved to the tip part of the inclined surface 23a is referred to as a collection end position.

  As shown in FIG. 2, a discharge duct 40 is provided between the storage tank 21 and the motor fixing base 27a. Below the discharge duct 40, a collection container 41 for collecting the suspended matter 16 is installed. Hereinafter, the case where the scraper 35 moves toward the discharge duct 40 is defined as forward, and the reverse is defined as backward.

  By moving the scraper 35 forward from the collection start position, the suspended matter 16 is accumulated in the lower part of the scraper 35. The scraper 35 moves to the collection end position while accumulating the suspended matter 16. Thereby, as shown in FIG. 4, the suspended matter 16 accumulated by the scraper 35 falls from the discharge duct 40 beyond the tip of the inclined surface 23 a. The suspended matter 16 that has fallen from the discharged dust 40 is collected in the collection container 41.

  Next, the scraper 35 moves backward and returns to the collection start position. Thereafter, the scraper 35 moves forward again and moves to the collection end position while collecting the suspended matter 16. The scraper 35 repeats the above operation according to the rotation of the rotating shaft 27b of the motor 27. As a result, the suspended matter 16 is continuously collected in the processor 12. In addition, the rotational speed of the rotating shaft 27b is 5 rpm, for example.

  Here, in the present embodiment, the moving speed of the scraper 35 is reduced in the vicinity of the collection end position in order to prevent the liquid (waste liquid 15) from dropping into the collection container 41 together with the suspended matter 16. Hereinafter, it will be described in detail with reference to the drawings.

  FIG. 5 is a diagram showing the relationship between the motor 27 and the first and second arms 29 and 30. FIG. 5 (a) shows the state of the first and second arms 29, 30 when the scraper 35 (FIG. 2) is at the recovery start position, and FIG. 5 (b) to FIG. Each state when the rotating shaft 27b of the motor 27 is rotated by 180 ° clockwise by 45 ° from the state 5 (a) is shown. FIG. 5E shows the state of the first and second arms 29 and 30 when the scraper 35 is at the collection end position. Further, in FIG. 5, the movement distances on the rail 28 of the connecting shaft 30a are shown as L1, L2, L3 and L4, respectively.

  In the following description, the rotation angle of the rotating shaft 27b in the state of FIG. 5A is 0 °, and FIGS. 5B, 5C, 5D, and 5E. The rotation angles of the rotating shaft 27b in each state are 45 °, 90 °, 135 °, and 180 °, respectively.

  As shown in FIG. 5, the moving distance L4 of the connecting shaft 30a when the rotating shaft 27b is rotated from 135 ° to 180 ° is the moving distance L4 of the connecting shaft 30a when the rotating shaft 27b is rotated from 90 ° to 135 °. It is significantly smaller than the movement distance L3. Further, the moving distance L3 of the connecting shaft 30a is smaller than the moving distance L2 of the connecting shaft 30a when the rotating shaft 27b is rotated from 45 ° to 90 °. The moving distance L2 of the connecting shaft 30a is larger than the moving distance L1 of the connecting shaft 30a when the rotating shaft 27b is rotated from 0 ° to 45 °. That is, the moving speed of the connecting shaft 30 a is fast at the central portion of the rail 28, but decreases as it approaches the motor 27.

  Here, as described above, the scraper 35 (FIG. 2) moves in conjunction with the connecting shaft 30a. Accordingly, the moving speed of the scraper 35 is fast near the upper part of the partition plate 25 (FIG. 2), but decreases as it approaches the collection end position. In particular, when the scraper 35 moves on the inclined surface 23a (FIG. 2), the moving speed of the scraper 35 is greatly reduced.

  In this case, the suspended matter 16 accumulated by the scraper 35 moves on the inclined surface 23a at a low speed. Therefore, the suspended matter 16 can be sufficiently drained on the inclined surface 23a. Thereby, it is possible to prevent the waste liquid 15 from dropping into the collection container 41 (FIG. 2) together with the suspended matter 16.

  Further, since the moving speed of the scraper 35 decreases as the recovery start position is approached, it is possible to prevent the liquid surface of the waste liquid 15 from undulating in the vicinity of the inclined surface 23a. Thereby, it is possible to prevent the waste liquid 15 from falling into the collection container 41 beyond the inclined surface 23a.

(D) Effects of Embodiment As described above, in the liquid processing apparatus 100 according to the present embodiment, the moving speed of the scraper 35 is significantly reduced on the inclined surface 23a. Thereby, the suspended matter 16 can be sufficiently drained on the inclined surface 23a. In addition, since the moving speed of the scraper 35 decreases in the vicinity of the inclined surface 23a, the liquid surface of the waste liquid 15 is prevented from undulating. Thereby, the waste liquid 15 can be prevented from flowing into the collection container 41 beyond the inclined surface 23a. As a result, only the suspended matter 16 can be recovered in the recovery container 41, and the waste liquid 15 can be purified efficiently.

  In the present embodiment, the scraper 35 can be advanced and retracted in the X direction by rotating the rotating shaft 27b of the motor 27 in one direction. That is, it is not necessary to provide a complicated switching mechanism for reversing the moving direction of the scraper 35.

  Further, the moving speed of the scraper 35 can be reduced in the vicinity of the inclined surface 23a while rotating the rotating shaft 27b of the motor 27 at a constant speed. That is, it is not necessary to provide a complicated speed control mechanism for changing the moving speed of the scraper 35.

  As a result, the manufacturing cost of the liquid processing apparatus 100 can be reduced and the size can be reduced.

  In addition, since it is not necessary to provide a complicated mechanism, failure of the processor 12 can be prevented and maintenance is improved.

(2) Second Embodiment (a) Configuration of Processing Unit The liquid processing apparatus according to the second embodiment is different from the liquid processing apparatus 100 according to the first embodiment in the following points.

  FIG. 6 is a top view of the processor 12 of the liquid processing apparatus according to the second embodiment, and FIG. 7 is a cross-sectional view in the YZ plane of the upper portion of the processor 12 of FIG.

  As shown in FIG. 7, in the present embodiment, a motor 27 is attached to the side surface portion 20 b side of the upper surface portion 20 f of the housing 20. A rotation shaft 27 b of the motor 27 protrudes into the housing 20.

  As shown in FIGS. 6 and 7, one end side of the first arm 51 is fixed to the rotating shaft 27 b in the housing 20. The upper part of the sliding shaft 52 is fixed to the other end side of the first arm 51.

  On the upper surface portion 20f of the housing 20, a fixed shaft 53 is fixed on the side surface portion 20b side so as to extend downward. Note that the fixed shaft 53 is located at the approximate apex of an isosceles triangle having the rail 28 as a base in the XY plane.

  One end side of the second arm 54 is rotatably attached to the lower portion of the fixed shaft 53. As shown in FIG. 6, the second arm 54 is gently bent at a substantially central portion in the YZ plane. An oval through-hole 54a extending in the longitudinal direction is formed between one end side and the central portion of the second arm 54, and a longitudinal portion is formed between the other end side and the central portion of the second arm 54. An oblong through hole 54b extending in the direction is formed.

  As shown in FIG. 7, the lower portion of the sliding shaft 52 is slidably inserted into the through hole 54a. Further, the connecting shaft 30a is slidably inserted into the through hole 54b. The upper and lower portions of the connecting shaft 30a are fixed to the moving member 32 and the connecting member 31 as in the liquid processing apparatus 100 (see FIGS. 2 and 3) according to the first embodiment.

(B) Operation of Floating Body Recovery Mechanism Hereinafter, the movement of the scraper 35 (FIG. 6) having the above configuration will be described with reference to the drawings. FIG. 8 is a diagram showing the relationship between the motor 27 and the first and second arms 51 and 54. FIG. 8A shows the state of the first and second arms 51 and 54 when the scraper 35 is at the recovery start position. FIGS. 8B to 8I are shown in FIG. From this state, each state when the rotating shaft 27b of the motor 27 is rotated 360 ° clockwise by 45 ° is shown. FIG. 8G shows a state where the scraper 35 is at the collection end position.

  In the following description, the rotation angle of the rotation shaft 27b in the state of FIG. 8A is 0 °, and the rotation angle of the rotation shaft 27b in each of the states of FIG. 8B to FIG. 45 °, 90 °,... 315 ° and 360 °.

  As shown in FIG. 8A, when the scraper 35 (FIG. 6) is at the collection start position, the connecting shaft 30a is positioned at one end of the through hole 54b on one end side of the rail 28. Moreover, the sliding shaft 52 is located in the approximate center part of the through-hole 54a.

  When the rotary shaft 27b is rotated 270 ° clockwise from the state of FIG. 8A, the slide shaft 52 slides in the through hole 54a as shown in FIGS. 8B to 8G. However, the second arm 54 is rotated clockwise around the fixed shaft 53. Accordingly, the connecting shaft 30a moves to the other end side of the rail 28.

  Next, when the rotary shaft 27b is rotated to 360 ° from the state shown in FIG. 8G, the slide shaft 52 slides in the through hole 54b as shown in FIGS. 8H and 8I. While moving, the second arm 54 is rotated counterclockwise about the fixed shaft 53. Thereby, the connecting shaft 30a moves to one end side of the rail 28 and returns to the state of FIG.

  That is, in the present embodiment, the scraper 35 (FIG. 6) at the collection start position can be moved to the collection end position by rotating the rotating shaft 27b of the motor 27 by 270 °. Further, the scraper 35 at the collection end position can be returned to the collection start position by rotating the rotary shaft 27b of the motor 27 by 90 °.

  In this case, when collecting the suspended matter 16 (FIG. 2), the scraper 35 moves to the collection end position at a low speed, and after the suspended matter 16 is discarded from the discharge duct 40, the scraper 35 is moved to the collection start position at a high speed. Return to. Therefore, the processing speed in the processor 12 can be improved while reliably preventing the liquid surface of the waste liquid 15 from undulating when the suspended matter 16 is scraped. Thereby, the waste liquid 15 can be efficiently purified.

  Further, the scraper 35 can be moved forward and backward in the X direction by rotating the rotating shaft 27b of the motor 27 in one direction. That is, it is not necessary to provide a complicated mechanism for reversing the moving direction of the scraper 35.

  Further, the moving speed can be changed between when the scraper 35 moves forward and when the scraper 35 moves forward while rotating the rotating shaft 27b of the motor 27 at a constant speed. That is, it is not necessary to provide a complicated speed control mechanism for changing the moving speed of the scraper 35.

  As a result, the manufacturing cost of the liquid processing apparatus can be reduced, and the processing device 12 can be downsized.

  In addition, since it is not necessary to provide a complicated mechanism, failure of the processor 12 can be prevented and maintenance is improved.

  In the present embodiment, the case where the second arm 54 is bent at a substantially central portion has been described. However, the second arm 54 may not be bent. Further, the through hole 54a and the through hole 54b may be formed as one through hole.

(3) Third Embodiment The liquid processing apparatus according to the third embodiment is different from the liquid processing apparatus 100 according to the first embodiment in the following points.

  FIG. 9 is a top view of the processor 12 of the liquid processing apparatus according to the third embodiment.

  As shown in FIG. 9, in the present embodiment, the center point of the rotating shaft 27b of the motor 27 and the center point of the groove 28a of the rail 28 are not located on the same straight line in the X direction. Is located on the side surface 20b side with respect to the groove 28b.

  FIG. 10 is a diagram showing the relationship between the motor 27 and the first and second arms 29 and 30 in the present embodiment. FIG. 10 (a) shows the state of the first and second arms 29, 30 when the scraper 35 (FIG. 9) is at the recovery start position, and FIGS. 10 (b) to 10 (i) The respective states when the rotating shaft 27b of the motor 27 is rotated 360 ° clockwise by 45 ° from the state 10 (a) are shown. FIG. 10G shows a state where the scraper 35 is at the collection end position.

  In the following description, the rotation angle of the rotation shaft 27b in the state of FIG. 10A is 0 °, and the rotation angle of the rotation shaft 27b in each of the states of FIG. 10B to FIG. 45 °, 90 °,... 315 ° and 360 °.

  As shown in FIG. 10A, when the scraper 35 (FIG. 9) is in the recovery start position, the connecting shaft 30 a is located on one end side of the rail 28.

  When the rotating shaft 27b is rotated approximately 270 ° clockwise from the state of FIG. 10A, the first arm 29 is centered on the rotating shaft 27b as shown in FIGS. 10B to 10G. Rotate approximately 270 °. One end side of the second arm 30 rotates approximately 270 ° around the rotation shaft 27b as the first arm 29 rotates approximately 270 °. When one end side of the second arm 30 rotates by approximately 270 °, the connecting shaft 30a attached to the other end side of the second arm moves to the other end side of the rail 28.

  Next, when the rotary shaft 27b is rotated up to 360 ° from the state of FIG. 10G, the first arm 29 is centered on the rotary shaft 27b as shown in FIGS. 10H and 10I. Is rotated approximately 90 °. One end side of the second arm 30 rotates approximately 90 ° around the rotation shaft 27b as the first arm 29 rotates approximately 90 °. When one end side of the second arm 30 rotates by approximately 90 °, the connecting shaft 30a moves to one end side of the rail 28 and returns to the state of FIG.

  That is, in the present embodiment, the scraper 35 (FIG. 9) at the collection start position can be moved to the collection end position by rotating the rotating shaft 27b of the motor 27 by approximately 270 °. Further, the scraper 35 at the collection end position can be returned to the collection start position by rotating the rotary shaft 27b of the motor 27 by approximately 90 °.

  In this case, as in the second embodiment, when scraping the suspended matter 16 (FIG. 2), the scraper 35 moves to the collection end position at a low speed, and the suspended matter 16 is discarded from the discharge duct 40. Thereafter, the scraper 35 returns to the collection start position at a high speed. Therefore, the processing speed in the processor 12 can be improved while reliably preventing the liquid surface of the waste liquid 15 from undulating when the suspended matter 16 is scraped.

  Further, as shown in FIGS. 10B to 10G, as the connecting shaft 30a approaches the other end of the rail 28, the moving distance of the connecting shaft 30a with respect to the rotation angle of the rotating shaft 27b decreases. In this case, as in the first embodiment, the moving speed of the scraper 35 is fast near the upper part of the partition plate 25 (FIG. 2), but decreases as it approaches the collection end position. In particular, when the scraper 35 moves on the inclined surface 23a (FIG. 2), the moving speed of the scraper 35 is greatly reduced.

  Therefore, the suspended matter 16 can be sufficiently drained on the inclined surface 23a. Thereby, it is possible to prevent the waste liquid 15 from dropping into the collection container 41 (FIG. 2) together with the suspended matter 16. Further, it is possible to prevent the liquid surface of the waste liquid 15 (FIG. 2) from undulating in the vicinity of the inclined surface 23a. Thereby, it is possible to prevent the waste liquid 15 from falling into the collection container 41 beyond the inclined surface 23a.

  As a result, the waste liquid 15 can be efficiently purified.

  Further, the scraper 35 can be moved forward and backward in the X direction by rotating the rotating shaft 27b of the motor 27 in one direction. That is, it is not necessary to provide a complicated mechanism for reversing the moving direction of the scraper 35.

  Further, the moving speed can be changed between when the scraper 35 moves forward and when the scraper 35 moves forward while rotating the rotating shaft 27b of the motor 27 at a constant speed. That is, it is not necessary to provide a complicated speed control mechanism for changing the moving speed of the scraper 35.

  As a result, the manufacturing cost of the liquid processing apparatus can be reduced, and the processing device 12 can be downsized.

  In addition, since it is not necessary to provide a complicated mechanism, failure of the processor 12 can be prevented and maintenance is improved.

  The distance in the Y direction between the center point of the rotating shaft 27b and the center point of the groove 28a is set to be smaller than the difference between the length of the second arm 30 and the length of the first arm 29. When the distance in the Y direction between the center point of the rotating shaft 27b and the center point of the groove 28a is larger than the difference between the length of the second arm 30 and the length of the first arm 29, the first arm 29 can rotate. Because it disappears. Further, when the distance in the Y direction between the center point of the rotating shaft 27b and the center point of the groove portion 28a is equal to the difference between the length of the second arm 30 and the length of the first arm 29, the moving member 32 cannot move backward. Because there are things.

  When the distance in the Y direction between the center point of the rotation shaft 27b and the center point of the groove portion 28a is set to be smaller than the example of FIG. 10, the rotation angle of the rotation shaft 27b when the scraper 35 starts retreating is 270. Less than °. Therefore, the moving speed of the scraper 35 can be adjusted by adjusting the distance in the Y direction between the center point of the rotating shaft 27b and the center point of the groove 28a.

  In the above description, the rotation shaft 27b is positioned on the side surface 20b side with respect to the rail 28. However, the rotation shaft 27b may be positioned on the side surface portion 20c side with respect to the rail 28.

(4) Other Embodiments In the first and third embodiments described above, the motor 27 is provided in the housing 20, but the motor 27 is provided outside the housing 20 as in the second embodiment. May be provided. In the second embodiment, the motor 27 is provided outside the housing 20, but the motor 27 may be provided inside the housing 20.

  Further, in the first and third embodiments, the motor 27 is provided on the side surface portion 20d side, but the motor 27 may be provided on the side surface portion 20a side.

  Further, in the second embodiment, the motor 27 is provided on the side surface portion 20b side, but the motor 27 may be provided on the side surface portion 20c side.

  Moreover, although the case where the motor 27 was provided was demonstrated in the said embodiment, you may provide the drive device using air pressure, hydraulic pressure, water pressure, etc. instead of the motor 27. FIG.

  Moreover, in the said embodiment, although the case where the 1st arm 29 or the 1st arm 51 was attached to the rotating shaft 27b of the motor 27 was demonstrated, it is not limited to this, It rotates centering on the rotating shaft 27b. Anything is acceptable. For example, a disk-shaped rotating plate may be attached to the rotating shaft 27b, and the connecting shaft 29a or the sliding shaft 52 may be attached to the rotating plate.

(5) Correspondence between each constituent element of claim and each part of the embodiment Hereinafter, an example of correspondence between each constituent element of the claim and each part of the embodiment will be described, but the present invention is limited to the following example. Not.

  In the above embodiment, the waste liquid 15 corresponds to a liquid, the suspended matter recovery mechanism 22 corresponds to a suspended matter recovery means, the side wall 23 corresponds to a side surface, the discharge duct 40 corresponds to a discharge portion, and the electric motor 27 It corresponds to a power generator, the scraper 35 corresponds to a collecting member, the first arm 29 or the first arm 51 corresponds to a rotating member, and the second arm 30 or the second arm 54 corresponds to a connecting member. The rail 28 corresponds to the restricting member, the connecting shaft 29a corresponds to the first connected portion, the connecting shaft 30a corresponds to the second connected portion or the second engaged portion, and the fixed shaft 53 Corresponds to the support shaft, the through hole 54a corresponds to the first engaging portion, the through hole 54b corresponds to the second engaging portion, and the sliding shaft 52 corresponds to the first engaged portion. The introduction pipe 18 corresponds to the liquid inflow portion, the outlet pipe 19 corresponds to the liquid outflow portion, and the region 21a. 21b corresponds to the first region, the region 21c corresponds to a second region, the partition plate 26 corresponds to the partition member.

  INDUSTRIAL APPLICABILITY The present invention can be used when discarding liquid in various industries such as restaurants and general households.

It is a schematic diagram which shows the liquid processing apparatus which concerns on 1st Embodiment. It is sectional drawing in the XZ plane of a processor. It is a top view of a processor. It is sectional drawing in the XZ plane of a processor. It is the figure which showed the relationship between a motor and the 1st and 2nd arm. It is a top view of the processing device of the liquid processing apparatus which concerns on 2nd Embodiment. It is sectional drawing in the YZ plane of the upper part of the processor of FIG. It is the figure which showed the relationship between a motor and the 1st and 2nd arm. It is a top view of the processing device of the liquid processing apparatus which concerns on 3rd Embodiment. It is the figure which showed the relationship between a motor and the 1st and 2nd arm.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Pump 12 Processor 13 Grease interceptor 15 Waste liquid 16 Floating substance 18 Introducing pipe 19 Deriving pipe 20 Housing 21 Reservoir 22 Floating substance collection mechanism 23 Side wall 23a Inclined surface 25, 26 Partition plate 27 Electric motor 27b Rotating shaft 28 Rail 29 , 51 First arm 30, 54 Second arm 30a Connecting shaft 31 Connecting member 32 Moving member 35 Scraper 100 Liquid processing apparatus

Claims (9)

A liquid processing apparatus for separating a liquid and a suspended matter floating in the liquid,
A storage tank having a side surface for storing liquid;
Suspended matter collecting means for collecting suspended matter floating in the liquid stored in the storage tank;
Provided to be adjacent to the side surface of the storage tank, and a discharge unit for discharging the floating matter collected by the floating matter collecting means,
The suspended matter collecting means includes:
A movable member provided so as to be movable in one direction and the opposite direction from the predetermined position above the storage tank toward the upper side of the side surface;
A power generator for generating power,
A rotating shaft that is rotated by power generated by the power generator;
A motion converting member that converts the rotational motion of the rotating shaft into the reciprocating motion of the moving member in the one direction and the opposite direction;
In conjunction with the reciprocating motion of the moving member, reciprocally move along the liquid surface of the liquid in the storage tank, collect the floating matter when moving from a predetermined position in the storage tank to the side surface, and A collecting member for discharging from the discharge section,
The liquid processing apparatus according to claim 1, wherein a moving speed of the collecting member in the vicinity of the side surface is lower than a maximum speed of the reciprocating movement of the collecting member. The upper end portion of the side surface has an inclined surface inclined obliquely upward from the vertical direction to the discharge portion side,
A portion of the inclined surface is exposed from the liquid;
The liquid processing apparatus according to claim 1, wherein the collection member discharges the suspended matter from the discharge unit while moving on the inclined surface. The motion conversion member is
A rotating member attached to the rotating shaft and rotating in conjunction with the rotating motion of the rotating shaft;
A connecting member that connects the rotating member and the moving member;
A regulating member that regulates the moving path of the moving member in the one direction and the opposite direction,
The connecting member has a first connecting portion and a second connecting portion at positions separated from each other,
The rotating member has a first connected portion to which the first connecting portion is rotatably attached at a position different from the rotation shaft,
The liquid processing apparatus according to claim 1, wherein the moving member has a second connected portion to which the second connecting portion is rotatably attached. The liquid processing apparatus according to claim 3, wherein the rotation shaft is provided in the vicinity of an end of a moving path of the moving member on the discharge unit side. The liquid processing apparatus according to claim 3, wherein the rotation shaft is provided at a position on an extension line of the movement path. The rotating shaft is provided at a position spaced apart from the extension line of the movement path by a predetermined distance,
The predetermined distance is equal to or less than a difference between a distance from the first connecting portion to the second connecting portion and a distance from the rotating shaft to the first connected portion. 3. The liquid processing apparatus according to 3 or 4. When one rotation of the rotating shaft is divided into a first rotation and a second rotation, the motion conversion member converts the first rotation into a one-way motion of the moving member, and the second rotation 3. The liquid processing apparatus according to claim 1, wherein rotation is converted into a reverse movement of the moving member, and a rotation angle in the first rotation is larger than a rotation angle in the second rotation. The motion conversion member is
A rotating member attached to the rotating shaft and rotating in conjunction with the rotating motion of the rotating shaft;
A regulating member that regulates the moving path of the moving member in the one direction and the opposite direction;
Including a connecting member that is supported by a support shaft provided at a predetermined position and rotates about the support shaft;
The connecting member includes a first engagement portion extending in a long shape from the support shaft side, and a second engagement portion extending in a long shape from an end portion side of the first engagement portion. ,
The rotating member has a first engaged portion that is slidably engaged with the first engaging portion at a position different from the rotation shaft,
The moving member has a second engaged portion that is slidably engaged with the second engaging portion,
The distance between the rotating shaft and the first engaging portion is smaller than the distance between the rotating shaft and the support shaft and the distance between the rotating shaft and the regulating member,
The connecting member rotates in one direction in conjunction with the first rotation of the rotating shaft, and rotates in the opposite direction in conjunction with the second rotation of the rotating shaft. The liquid processing apparatus according to claim 7. A liquid inflow portion for allowing liquid to flow into the storage tank;
A liquid outflow part for allowing liquid to flow out of the storage tank;
The storage tank has first and second regions,
The liquid inflow portion is provided in the first region;
The liquid outlet is provided in the second region;
The upper portions of the first and second regions are blocked from each other by a partition member;
The first region and the second region communicate with each other below,
The liquid processing apparatus according to claim 1, wherein the collecting member moves within the first region.

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